2014 Chevrolet Silverado V6 my son drove the truck after the flash engine light was flashing for two days and then the truck shut off and he had it towed. I went and checked the truck out and ran a scan on the truck showed P305 and P 300. I found cylinder one and cylinder three coil packs bad so I changed all the plugs and the wires also they were fouled and very dirty and looked to be original. I checked to make sure that I was getting spark and I was. I tried to start the truck and it would just turn over with no start. I checked the mass airflow sensor and sprayed it out with mass airflow sensor cleaner. I also change the camshaft positioning sensor. Still no start. Any ideas I tried starter fluid still no start
Sir thank you! thank you! Thank you! Coming from a homeless man that all I have is my truck a local Mech was asking over $330 that i do not have to fix my truck and then God, sent me your Video, and it worked it WORKED!!!😂 under $5 so thank you and God bless you always Sir keep up the great work.
1996 Mercedes-Benz SL 320 sat for 9 years solid, didnt even try to seek faults. Just did this right of the bat and low and behold. The fuelpump was faulty... Car started up right away though on the the starter fluid after 9 long years. Thank you Sir this was really a timesaver and relief. Thank you
Boy Oh Boy!!!! I watched all the relevant videos re engine codes/crank but no start. i changed throttle body sensors, accelerator pedal sensor and module and still crank no start....THEN came across your video and followed your advise...and ...WOW!!!!!!....it works...heaven sent....considering I'm about to give up...THANK YOU VERY MUCH!!!!!!
Yes I didn’t unplug the relay. Testing like this confirmed our opinions. Had figured it was my fuel pump..even after spending $160 for a fuel pump testing kit.. this saved us some time.
I’m on the same page with you, but how does this verify It’s the fuel pump and not like a fuel filter or wiring? Because I recently within the last year or so change the fuel pump. Now I know that doesn’t matter. I just have a 99 ram 1500 and don’t wanna drop the tank if I don’t have to. I’d like to eliminate all other possibilities first. And yes it popped off starting fluid. Thanks 😊
LMAO I agree. Theirs a few tips or tricks some people should know tho. Sometimes a bad fuel pump relay etc can be fixed temporarily by tapping or reseating. And yes banging a starter while trying to crank many times does work. Saves you a tow but will not solve the problem. I've done it on diesel automatic semis many times. Whack that think with a rubber mallet while somebody trys to start it. It'll almost always fire. Fuel Pump relays can be intermittent. Pulling it and reseating it or tapping it on ground sometimes may get that pump to start working. But again lol your still broken. Gets you to the local parts store tho with out a tow. What he's doing is showing you hard way. Listen for a hum before turning your car to crank position. No humming. It's almost always 1 of the 3. Bad Pump, Bad Relay, Bad Fuse.
Thanx for posting this video! I'll try this out. I'm almost certain it's the fuel pump gone out on my truck. This will either confirm it or tell me to check something else on my crank, no start issue.
My idle air control was shot, replaced alternator and fuel pump, but now reading 0 fuel pressure. Starts but doesn’t stay run. Like how could you put the filter on wrong? The 90degrees hose is supply from tank. To check That 4 pin connector for 12v is a 2 person job :/ ,but possibly ccrm ? 94-95 next to extra coolant container,- 96+ side wheel well. Or other physical blockage This video helped for sure
I know. Lol it's crazy how many people probably paid for a new pump when the inertia switch or relay cud be failing. Wow. Is he that ignorant or just wants to cause people extra money with bad advice ? Crazy
@@karitunes1 he did it to create content a bad fuel pump can be a number of things and it’s common sense to start with the cheapest things (relay and fuses) cause they’re cheaper then a new fuel pump if you don’t understand that you should be going to a mechanic lol this was a good video
Happened to me. I tried a similar test too. My Dodge Dakota 6 cylinder ran a bit better though -- the pump (located inside the gas tank) was still working partially. Likely a clogged filter after 70 K miles! First thought it was a vacuum leak.
The other thing you can do is bang on the center of the fuel tank and in most cases the engine will fire. When you hit the tank the brush assembly in the electric motor will make contact again and the vehicle may start and run. I used this technique to get off of a busy street when my car died so I could get off of the main road and stop blocking traffic.
@@justinswehla3793 Yes in many cases this will work for a short time. This only applies to in tank electric fuel pumps. I used a mag lite flashlight on a friends vehicle and he was able to drive home on the back roads and to the mechanic a day later to have the fuel pump repaired. You can check on repair costs in your area online with repair pal .
Oh no way that's super cool thank u for telling me that Haha I'm in a similar boat as your friend! Except mine is an older car so sadly this time I cant use the ol bop
I was wondering about that, I have been having problems with my Dodge Durango 2000, I had a very weak battery, we thought that was it, swapped in a better battery and it worked fine for like a week and then the same problem happened again, out of the blue, the engine would not start after just going into our local grocery store, I came out and it would not start, my friend banged on my fuel tank and it fired up, managed to get it home, so I guess it’s safe to say it is my fuel pump then right?
This only let you know your getting no fuel to the motor. It does not tell if your fuel pump is bad or not. Just that the issue is in the fuel delivery system.which is the ecm, fuel pump relay, inertia switch, tank switch in some vehicles , fuel pump(s), fuel line fuel filter, fuel pump regulated, and fuel injectors
@@kennethcheesbrough6855 don’t forget to check for fuel even, heck that’s the first thing I’d check, I’ve seen many gm products float malfunction and get stuck on about 1/4 of a tank or even 3/4 of a tank and obviously the gauge quit…..
Good video👌May I suggest that Some cars (usually diesel) have so-called fuel pump pressure regulator control valve or "suction control valves" on the "high pressure" pump. It may be worth checking these as well to ascertain it is these, and not the main pump itself, that are faulty. They can be just as expensive-- if not more -than the pump itself, as I found out on my old Nissan Primera YD22dti which needed a pair of them rather than one.😪
I use this process as well but it's really just a start to the Diag process as many other parts on the Fuel side or could be the issue, I wouldn't just say Bad Pump, but sometimes it is just that.
I would clarify that this only confirms a fuel starvation situation. This could be from a clogged fuel filter with a functional pump. One would have to test the pressure of the pump to verify the pump is the issue.
This doesn't always mean it's a fuel pump or fuel filter I thought the same thing but after replacing everything to do with fuel the pump filter pressure regulator pump relay fuses still doesn't wanna start but wants to start on starting fluid so I'm down to either fuel injectors aren't getting a pulse or their clogged but also something else is bothering me when I test the fuel pump relay and try to hear the fuel pump prime when key is turned to the on position relay doesn't click or fuel pump doesn't prime now If I use a jump wire on relay my fuel pump runs constantly but with that jump wire with fuel pump running I checked fuel pressure from valve after the pressure regulator fuel spits out very fast so its getting fuel pressure with jump wire but won't start still so back to injectors either not getting power to pulse which since my fuel pump relay won't click when I turn key is making me think it's electrical not getting power to the relay and what powers the relay pcm or ecu are next in line for electrical problems maybe I had an electrical problem this whole time and only thought I had a fuel related problem because I did this test spraying starting fluid so just because it wants to run on fluid doesn't always mean it's fuel related and in some cases on econiline vans have are bad grounds also saw a video of a guy who showed a bad ground but mine looks good from the bottom but I lift up the plastic above where the ground lead is attached underneath van and I see a bunch of rust so I'm wondering if I have a bad ground because of all the rust
@@cheeseburgers82 did you fix fuel problem. Electrical maybe camshaft or crankshaft position sensor(s). Used the starter fluid engine did start. Thinking fuel pump bad but gas leaking around fuel pump (flange)bad o ring/ gasket.
Did you ever find out what it was? It appears to me you have a problem with the connection of your ignition circuit to the fuel pump. Usually they don’t run together but might be closely related to the dependence of the crank shaft position sensor
This is the most helpful video I've ever watched with a truck different than mine. Have an 88 f250 with this issue and this video told me exactly what I need to know
Is it a carb cleaner. Normally id just buy 1 liter of diesel,disconn3vt the fuel pump and soak it inside rhe diesel for a day..viola the engine cranks.....however id check the fuel pump relay.cos when i disconn3cted the hose from the assembly.no fuel gushing out
So what does it mean when you do this and it actually runs but then stops running after you turn it off and let it sit? Then doesn't even start running after you try this again?
What if the 25.00 cam sensor is bad. The cam sensor is the main input for the injectors. A fuel pump module can run 3 to 400.00. Using starting fluid only tells you if you are or aren't getting fuel in the cylinders. Remove timing and compression questions. I use starting fluid as one diagnostic tool. Not the only one.
Pick up if the cam sensor is working? Short answer ...yes. cam sensor codes are P034x or on the 0340 to 345 range. So if there is a fault, it might. Yes, there is a BUT. Sometimes the sensor is intermittent or barely within parameters and it won't set a code. So the diagnostic steps I use are 1. Starting fluid 2. Pressure test fuel system 3. Noid light to check injector circuit. These steps will give you a picture of what's happening.
ok here is a good one....same scenario same symptoms almost dropped the tank off my truck (2001 f150) to replace fuel pump. problem..................I was using a spare aftermarket key that the truck would not recognize so it would cut off the fuel system. The kicker is that sometimes it would work fine it just would not always accept the key.
That sucks but very good that you figured it out! That could have got real expensive if you replace parts as a form of troubleshooting like some ppl do. 👍
So I have a fule delivery problem listening to utube i changed the crank position sensor in a 2004 mitsubishi outlander sport 2.4l I've pulled the fule pump in the bottom of the pump canister was what looked like mud so I cleaned is and whats next to do any suggestions
My problem is intermittent and occurs when I shut the car off between 30 seconds and 5 minutes. After 5 minutes it always starts. How do you know the difference between a bad fuel pump and a bad fuel pump relay?
Have someone prime it and see if relay clicks. Test relay with power and ground, or swap a known good relay in to test. Like if the AC relay is the same swap them.
this is right , as a matter of a fact when my truck stopped running and had ford garage check it a mechanic sprayed starting fluid in it almost the same way and it started , it was the fuel pump that was bad , the truck started after the starter spray was sprayed in . the fuel pump was replaced and runs good now. the reason maybe the guy unhooked the relay was to keep the truck from starting on purpose to show an example of what happens if no fuel is going to the engine , and that spraying starter fluid will help you check this type of situation. he is correct . .
I had a broken relay on a Chevy truck and didn't know it at the time and had to use starter fluid to start it up every time, almost replaced the fuel pump until I found out the relay was broke, so what I'm saying is that without the relay in when I sprayed starter fluid the truck would start and run and wouldn't cut out.
I’m going to replace my fuel pump and the secondary I think that is the problem but once I get it running I sure hope I don’t have a blown head gasket buddy from spring starter fluid in the air air intake
I tapped on the fuel tank a few times with a small hammer and my dodge fired right back up. And used a LITTLE started fluid, reason being I've heard of engines getting ruint if you spray to much
I use this method as a diagnostic tool on a petrol engine to check if the ignition system is working, it 'could' help in diagnosing a bad fuel pump ? But it's not a hard and fast diagnosis that 'you have a bad fuel pump' there's a few more variables of what could be wrong ..... great video though 👍👍
that describes my 2001 ranger to a T. When the weather is warm, it starts just fine. Once we get cold temps, it will only start if I use starting fluid. but once it starts, it runs just fine. Is my fuel pump really the problem? The fuel pump must be pumping fuel once it starts running because it doesn't die.... Any ideas would be greatly appreciated! FYI, I have replaced the fuel filter.
I have a problem with a 5.2 dodge. It stalls after about 25 minutes or 25 miles. I tried the starting fluid and it started up for a few seconds. So I replaced the fuel pump its in the gas tank along with the filter and regulator, its an assembly. It still stalls after about 25 minutes. It will start back up after a 30 minute cool down and run another 25 minutes. Any help? So with the starting fluid it will start for a few seconds. My guess is the ecm is not sending a signal to the fuel pump after it warms up.
Word of Caution!!! If the car backfires you can catch the car on fire. Best to use the carburetor cleaner sparingly and have a fire extinguisher at the ready!!! Caught my Yukon on fire today.
Be careful not to use too much starter fluid, especially when the engine is not cranking while spraying the fluid. My son literally blew up his intake manifold.
Your not 100% right, what you have determined is that you have a fuel delivery problem. Corroded injector harness, blown fuse controlling injector, harness at fuel pump and a few others. Describing it this way may lead DYI’s on the wrong path and pull tank , put new pump in and still no start. Starting fluid , as others have said may not be good if used incorrectly, get air intake cleaner or injection cleaner, less volatile but still combustible to achieve what your describing and greatly reduces accidents
Good video very educational. Here's my situation my car wouldn't start. Use starting fluid CPL times started then died. Tried one more time fired up I let car run to engines temp. Now starts again I have a manual aswell. Any help I appreciate fuel pump going bad?
Thisw 2works ok as an early test. It proves that you have spark. It eliminates that entire system. How ever it only proves that the fuel system is not working. Mor4e testing needs to be done to prove what fuel component is the malf. Many things can cause the pump not to run.
Yes but the first thing you check is the relay/fuses start the cheapest is that doesn’t fix it then you replace the fuel pump assembly it’s cheaper and easier
@@Francofit you need two people to be able to do this trick one needs to lay down in the trunk with your ear against the inside of the trunk, have someone in the car, don’t start the car up but turn the key over all the way. Whoever’s laying in the trunk should hear a sound if you do your fuel pump is fine if not it’s something else. What’s wrong with your car might be able to help
@@chancesmall7026 my car won’t turn on anymore, I bought the new relay for it but nothing, it starts with starter fluid but then it dies right after, I tried hearing a click while someone starts it but nothing, I also can’t hear the click anymore inside like I use to when i put it into the on position
@@Francofit yea it’s most likely your fuel pump bud im sorry but just in case check your fuel filter first it’s a lot cheaper and sometime they get clogged up, also buy some Lucas oil fuel injector cleaner/fuel system cleaner try get it started and run some of that through it. If that doesn’t work it probably is the fuel pump I’m sorry
Brake cleaner works great too. Ss long as you buy the brake clean that says "Extremely Flammable " on the label. Not a lot needed and I usually crack the throttle about half way or a bit less so the spray gets by the butterfly in the throttle body.
A CRANK NO START does not always mean a bad pump, you also have to check the basics SPARK, FUEL, AIR COMPRESSION as well, short to ground is the ecm commanding the fuel pump on when the key switch is turned on.
But, this video is about fuel related causes, not the others... Even though this method does verify spark and compression (If it fires with starting fluid)
Well he obviously ruled spark and air if it starts but does his video mean its the fuel pump not necessarily i like to think of it of starting the investigation in the right direction ruling spark and air and focusing on fuel like pump relay short in the wire to the pump etc…
Would this also verify bad injectors? My fuel pump is new and fuel pressure is normal. Crank no start situation, replace crankshaft position sensor, checked, put new spark plug wires, test light shows power to the spark plugs. Soon replacing temp sensor and cleaning injects I guess.
So what if mine cranks no starts. But starts with starting fluid as this one did, but mine will stay running once started with starting fluid. What’s your thoughts on that? It’s a foxbody mustang 5.0.
Does anyone know where in heck is the fuel pump relay on an 88 caravan dodge, owners manual does not mention it, not the Haynes Motor manual? You can jump the fuel pump relay to eliminate that item as well. I would ask is it Possible to bypass the in tank fuel pump easily with just an inline fuel pump ? thanks.
I bought a 84 old pontiac. It wont start. I spray a bit of starter fluid and it will start right away. I could drive around for 10 min. Shut off the engine and the car will start again just fine. It seems to only need starter fluid when the engine is cold. I changed spark plugs already. Any suggestions?
so if you take off air intake and poor gas directly in or shoot starter fluid in intake and nothing happens is it not getting any spark??? just checking...thax
its definitely a spark issue... no codes at all...maybe my computor took a shit...i work alone and do not have remote starter..very tight compartment ...
i did have a p1345but since i replaced timing chain no codes anymore...i think it could be coil...very much a pain in the ars! hope to fix this issue tomorrow ...thax
i have an automatic 2001 VW jetta 2.0 - it sat since december 2021 until now april 2023 mobile mechanic came by and put in a brand new battery, refurbished starter, cleaned up the rusted ground connection from the starter to the chassis or transmission whatever it is the car now cranks, but won't start - he then took off one end of the cold air intake and sprayed something into the engine while i started it up but then it died after 2 seconds the gas is original from probably november 2021 , i have about half a tank he is telling me that probably the fuel pump needs to be replaced any ideas if its just bad gas ? i have 87 octane in there
This! Using ether just shows that you have no restrictions from the TB/carb and you have spark. Nothing more he’ll you could do this and start the engine and just be out of gas lol
Solution One!! You’re absolutely right. Ford Junk! If you miss treat a Toyota or Honda or Nissan... it’ll be awhile before it starts to give you trouble but even if you treat a Ford good it’ll still find away to mess up on you.. That’s just my experience...
WD-40 a bit safer than starting fluid. to my surprise it works well on 4 stroke gas engines. Diesel? not so much on cold start, but it helps & leaves a little lube that ether [starting fluid] removes.
I am having the same problem with my 2011 Hyundai Sonata it turns over but want start I was told it could be the fuel pump relay are the crank shaft position sensor . Does this sound right to you?
Vietnam Vet Could be... if it tries to fire with this method it's not getting fuel for some reason... Some computer may use the crank sensor signal as an input to fire injectors when it knows engine is turning.
My van was going great then one morning I turned it over and it cranked over but didn't start my mechanic says it could b electrical fault but it starts with starting fluid do u reckon it's the pump that's gone
of corse its a fuel pump issue and this is what the vid just explained. There clearly isn't fuel being supplied so check the relay then check the pump itself
@@matthewtoomer2181 you're wrong... And you've been wrong several times basically for the same reason... The video suggests that you got a bad fuel pump if you can show that you have spark and it will fire.. it doesn't say you might have a bad ground or you might have a bad relay or you might have a bad control signal or you might have a bad injectors or you might have a clogged fuel filter or you might have a pinched fuel line... The video suggests that what he does indicates that you have a bad fuel pump nothing more and that's why it's incomplete.
I had a bad fuel injector in cylinder 5. I got that taken care of. Before that I had the fuel filter changed. After the fuel filter was changed, the car started sputtering and will die out once it warms up. Is this caused by the fuel pump?
I just had this problem. I pulled the fuel pump fuse, and it was good. This is the first thing you should do. Then check voltage at the relay terminals which were good for me. Then I changed my relay and everything started working. Then I plugged my old relay back in everything worked. The connection between the relay and the housing pins oxidized. Just had to pull and reset the relay.
How do you know that it’s not your pcm ecm. On my car the fuel punishable controlled by the pcm. If a connector comes lose or the pcm malfunctions, the fuel pump doesn’t work. Also, if you get a backfire spraying that fluid in your intake, you might blow a hole in your air duct work.
Before I change the fuel pump..... I have followed all your trouble shooting advice (short of using a pressure gage). I can hear the fuel pump when the key is turned over to accessory it sounds strong and when my wife turns the key over it does not sound as strong. To be sure, should I spend the money on a pressure gage? Thanks for a great video.
Men obviously can just turn the key strongly and given that universal fact pump runs strong, unlike women using machine causing dainty pumping by dainty key turning with feminine energy contaminating manly machine.
i did as you said turned on a bit with starting fluid then turnned off, but why can i still hear my fuel pump humming noise under truck like it still works?
cool I am having weird random non starting problem on my f 150 next time it acts up i will try this, at least it will narrow things down my mechanic cannot duplicate the problem.
Well mine is a different case car only cranks. But when i give it starting fluid it starts and runs normally not for a short time but runs and i can drive it just fine. When its off it can't start again unless starting fluid is applied doesn't matter if engine is hot or cold. It doesn't start even if i switch on it right back after switching off.
It can be multiple things actually. Mine is doing that right now but my fuel pulp turns on and my car will run until you shut it off then there is no power to it anymore. Last time my car wouldnt start and wasnt getting any fuel it was because of my egr. It can be many problems, it can also be getting vapor locked from the canister.
Just to add on to this, make sure no fuel line is touching anything hot. If you you can use a hanger to space it off of the heat. It can make it vapor lock. Check all sensors not just the relay. Make sure your fuel filter is not clogged as well and that there are no tears in your wiring.
BE SURE TO CHECK OUT PART 2 FOR A MORE DETAILED LIST OF CAUSES!!!
th-cam.com/video/l3ZEiWbhUIs/w-d-xo.html
a21bravo do u keep the relay unplugged y u try to start the vehicle after spraying the starter fluid
a21bravo hey bro I really need ur help
Wrong again make sure you got battery voltage at fuel pump connector@ pump
2014 Chevrolet Silverado V6 my son drove the truck after the flash engine light was flashing for two days and then the truck shut off and he had it towed. I went and checked the truck out and ran a scan on the truck showed P305 and P 300. I found cylinder one and cylinder three coil packs bad so I changed all the plugs and the wires also they were fouled and very dirty and looked to be original. I checked to make sure that I was getting spark and I was. I tried to start the truck and it would just turn over with no start. I checked the mass airflow sensor and sprayed it out with mass airflow sensor cleaner. I also change the camshaft positioning sensor. Still no start. Any ideas
I tried starter fluid still no start
@@dougmorrison644Its more likely that the Fuel Pump being a wearable part would go out rather than electric suply line is compromised
Sir thank you! thank you! Thank you! Coming from a homeless man that all I have is my truck a local Mech was asking over $330 that i do not have to fix my truck and then God, sent me your Video, and it worked it WORKED!!!😂 under $5 so thank you and God bless you always Sir keep up the great work.
1996 Mercedes-Benz SL 320 sat for 9 years solid, didnt even try to seek faults. Just did this right of the bat and low and behold. The fuelpump was faulty... Car started up right away though on the the starter fluid after 9 long years. Thank you Sir this was really a timesaver and relief. Thank you
Boy Oh Boy!!!! I watched all the relevant videos re engine codes/crank but no start. i changed throttle body sensors, accelerator pedal sensor and module and still crank no start....THEN came across your video and followed your advise...and ...WOW!!!!!!....it works...heaven sent....considering I'm about to give up...THANK YOU VERY MUCH!!!!!!
Glad it helped
This video is basically saving me hours and the cost of pressure guages etc trying to troubleshoot my car, thanks for the vid.
Yes I didn’t unplug the relay. Testing like this confirmed our opinions. Had figured it was my fuel pump..even after spending $160 for a fuel pump testing kit.. this saved us some time.
I’m on the same page with you, but how does this verify It’s the fuel pump and not like a fuel filter or wiring? Because I recently within the last year or so change the fuel pump. Now I know that doesn’t matter. I just have a 99 ram 1500 and don’t wanna drop the tank if I don’t have to. I’d like to eliminate all other possibilities first. And yes it popped off starting fluid. Thanks 😊
Yep it works good,we been doing it for the last 100yrs. Fresh gas or starting fluid either one right down the old throat, it works every time.
LMAO I agree. Theirs a few tips or tricks some people should know tho. Sometimes a bad fuel pump relay etc can be fixed temporarily by tapping or reseating. And yes banging a starter while trying to crank many times does work. Saves you a tow but will not solve the problem.
I've done it on diesel automatic semis many times. Whack that think with a rubber mallet while somebody trys to start it. It'll almost always fire. Fuel Pump relays can be intermittent. Pulling it and reseating it or tapping it on ground sometimes may get that pump to start working. But again lol your still broken. Gets you to the local parts store tho with out a tow.
What he's doing is showing you hard way. Listen for a hum before turning your car to crank position. No humming. It's almost always 1 of the 3. Bad Pump, Bad Relay, Bad Fuse.
Thanx for posting this video! I'll try this out. I'm almost certain it's the fuel pump gone out on my truck. This will either confirm it or tell me to check something else on my crank, no start issue.
Thank You for this video, a friend of mine just figured this out and almost spent a fortune trying to find this problem (fuel pump).
My idle air control was shot, replaced alternator and fuel pump, but now reading 0 fuel pressure. Starts but doesn’t stay run. Like how could you put the filter on wrong? The 90degrees hose is supply from tank. To check That 4 pin connector for 12v is a 2 person job :/ ,but possibly ccrm ? 94-95 next to extra coolant container,- 96+ side wheel well. Or other physical blockage
This video helped for sure
This went over so many peoples head. He took the relay out to simulate a bad fuel pump, relay, etc.
I know. Lol it's crazy how many people probably paid for a new pump when the inertia switch or relay cud be failing. Wow. Is he that ignorant or just wants to cause people extra money with bad advice ? Crazy
Yup
First thing I said crank it without touching anything 😂😂
@@karitunes1 he did it to create content a bad fuel pump can be a number of things and it’s common sense to start with the cheapest things (relay and fuses) cause they’re cheaper then a new fuel pump if you don’t understand that you should be going to a mechanic lol this was a good video
@@karitunes1 😭
That's what I did to test. I have a Mercedes-Benz, and this test worked perfectly
Great to hear!
Happened to me. I tried a similar test too. My Dodge Dakota 6 cylinder ran a bit better though -- the pump (located inside the gas tank) was still working partially. Likely a clogged filter after 70 K miles! First thought it was a vacuum leak.
If you a weak pump it wont saply the fuel to the rail.
The other thing you can do is bang on the center of the fuel tank and in most cases the engine will fire. When you hit the tank the brush assembly in the electric motor will make contact again and the vehicle may start and run. I used this technique to get off of a busy street when my car died so I could get off of the main road and stop blocking traffic.
Really? Like crawl under there and just give er a bop?
@@justinswehla3793 Yes in many cases this will work for a short time. This only applies to in tank electric fuel pumps. I used a mag lite flashlight on a friends vehicle and he was able to drive home on the back roads and to the mechanic a day later to have the fuel pump repaired. You can check on repair costs in your area online with repair pal .
Oh no way that's super cool thank u for telling me that Haha I'm in a similar boat as your friend! Except mine is an older car so sadly this time I cant use the ol bop
I was wondering about that, I have been having problems with my Dodge Durango 2000, I had a very weak battery, we thought that was it, swapped in a better battery and it worked fine for like a week and then the same problem happened again, out of the blue, the engine would not start after just going into our local grocery store, I came out and it would not start, my friend banged on my fuel tank and it fired up, managed to get it home, so I guess it’s safe to say it is my fuel pump then right?
Yessiree. The absolut quickest way, and can get one out of a jam, saving a tow,. Check for a good ground @ the pump too.
This only let you know your getting no fuel to the motor. It does not tell if your fuel pump is bad or not. Just that the issue is in the fuel delivery system.which is the ecm, fuel pump relay, inertia switch, tank switch in some vehicles , fuel pump(s), fuel line fuel filter, fuel pump regulated, and fuel injectors
Dont forget vvt crank and cam sensor or timing.
@@kennethcheesbrough6855 don’t forget to check for fuel even, heck that’s the first thing I’d check, I’ve seen many gm products float malfunction and get stuck on about 1/4 of a tank or even 3/4 of a tank and obviously the gauge quit…..
Very helpful. thanks to you 3 minutes to find out it was the fuel pump. thanks
So what about no start but starts with starting fluid and will continue to run fine until shut off?
Good video👌May I suggest that Some cars (usually diesel) have so-called fuel pump pressure regulator control valve or "suction control valves" on the "high pressure" pump. It may be worth checking these as well to ascertain it is these, and not the main pump itself, that are faulty. They can be just as expensive-- if not more -than the pump itself, as I found out on my old Nissan Primera YD22dti which needed a pair of them rather than one.😪
I use this process as well but it's really just a start to the Diag process as many other parts on the Fuel side or could be the issue, I wouldn't just say Bad Pump, but sometimes it is just that.
I would clarify that this only confirms a fuel starvation situation. This could be from a clogged fuel filter with a functional pump. One would have to test the pressure of the pump to verify the pump is the issue.
Most people try and replace the fuel filter before they test this.
This doesn't always mean it's a fuel pump or fuel filter I thought the same thing but after replacing everything to do with fuel the pump filter pressure regulator pump relay fuses still doesn't wanna start but wants to start on starting fluid so I'm down to either fuel injectors aren't getting a pulse or their clogged but also something else is bothering me when I test the fuel pump relay and try to hear the fuel pump prime when key is turned to the on position relay doesn't click or fuel pump doesn't prime now If I use a jump wire on relay my fuel pump runs constantly but with that jump wire with fuel pump running I checked fuel pressure from valve after the pressure regulator fuel spits out very fast so its getting fuel pressure with jump wire but won't start still so back to injectors either not getting power to pulse which since my fuel pump relay won't click when I turn key is making me think it's electrical not getting power to the relay and what powers the relay pcm or ecu are next in line for electrical problems maybe I had an electrical problem this whole time and only thought I had a fuel related problem because I did this test spraying starting fluid so just because it wants to run on fluid doesn't always mean it's fuel related and in some cases on econiline vans have are bad grounds also saw a video of a guy who showed a bad ground but mine looks good from the bottom but I lift up the plastic above where the ground lead is attached underneath van and I see a bunch of rust so I'm wondering if I have a bad ground because of all the rust
@@cheeseburgers82 did you fix fuel problem. Electrical maybe camshaft or crankshaft position sensor(s). Used the starter fluid engine did start. Thinking fuel pump bad but gas leaking around fuel pump (flange)bad o ring/ gasket.
A lot of newer cars have the filter built into the pump, how would you test that? Good fuel pump bad filter?
Did you ever find out what it was? It appears to me you have a problem with the connection of your ignition circuit to the fuel pump. Usually they don’t run together but might be closely related to the dependence of the crank shaft position sensor
This is the most helpful video I've ever watched with a truck different than mine. Have an 88 f250 with this issue and this video told me exactly what I need to know
Got the same shit going on with an 87 f250
Is it a carb cleaner. Normally id just buy 1 liter of diesel,disconn3vt the fuel pump and soak it inside rhe diesel for a day..viola the engine cranks.....however id check the fuel pump relay.cos when i disconn3cted the hose from the assembly.no fuel gushing out
GOT 2003 TAHOE,WAS
ABOUT TO CHANGE
FUEL PUMP,INSTEAD LEARNED
THAT THE (2)AMP FUSE GO BAD,
CHANGED IT,STARTED LIKE
NEW-YOUR VERY WELCOME 🙏
Gonna check this thank you
So what does it mean when you do this and it actually runs but then stops running after you turn it off and let it sit? Then doesn't even start running after you try this again?
What if the 25.00 cam sensor is bad. The cam sensor is the main input for the injectors. A fuel pump module can run 3 to 400.00. Using starting fluid only tells you if you are or aren't getting fuel in the cylinders. Remove timing and compression questions. I use starting fluid as one diagnostic tool. Not the only one.
Will an OBD reader pick that up?
Pick up if the cam sensor is working?
Short answer ...yes. cam sensor codes are P034x or on the 0340 to 345 range. So if there is a fault, it might.
Yes, there is a BUT.
Sometimes the sensor is intermittent or barely within parameters and it won't set a code. So the diagnostic steps I use are
1. Starting fluid
2. Pressure test fuel system
3. Noid light to check injector circuit.
These steps will give you a picture of what's happening.
ok here is a good one....same scenario same symptoms almost dropped the tank off my truck (2001 f150) to replace fuel pump. problem..................I was using a spare aftermarket key that the truck would not recognize so it would cut off the fuel system. The kicker is that sometimes it would work fine it just would not always accept the key.
That sucks but very good that you figured it out! That could have got real expensive if you replace parts as a form of troubleshooting like some ppl do. 👍
So I have a fule delivery problem listening to utube i changed the crank position sensor in a 2004 mitsubishi outlander sport 2.4l I've pulled the fule pump in the bottom of the pump canister was what looked like mud so I cleaned is and whats next to do any suggestions
My problem is intermittent and occurs when I shut the car off between 30 seconds and 5 minutes. After 5 minutes it always starts. How do you know the difference between a bad fuel pump and a bad fuel pump relay?
How do you narrow it down from a bad pump or relay?
Have someone prime it and see if relay clicks. Test relay with power and ground, or swap a known good relay in to test. Like if the AC relay is the same swap them.
@@BlaserBuilds ah, got it, thanks
I have a 1994 gmc 5.7 tbi wont start without starting fluid then runs good, once you shut it off it takes starting fluid to restart, Any Ideas ?
this is right , as a matter of a fact when my truck stopped running and had ford garage check it a mechanic sprayed starting fluid in it almost the same way and it started , it was the fuel pump that was bad , the truck started after the starter spray was sprayed in . the fuel pump was replaced and runs good now. the reason maybe the guy unhooked the relay was to keep the truck from starting on purpose to show an example of what happens if no fuel is going to the engine , and that spraying starter fluid will help you check this type of situation. he is correct . .
How much did the fuel pump replacement cost at the mechanic? I'm thinking about pulling the bed off of my ford and replacing the pump myself.
I had a broken relay on a Chevy truck and didn't know it at the time and had to use starter fluid to start it up every time, almost replaced the fuel pump until I found out the relay was broke, so what I'm saying is that without the relay in when I sprayed starter fluid the truck would start and run and wouldn't cut out.
@@fleet39 (
I’m going to replace my fuel pump and the secondary I think that is the problem but once I get it running I sure hope I don’t have a blown head gasket buddy from spring starter fluid in the air air intake
awesome thanx Im workin on a 0s Audi and you right we need new fuel pump!
My Sprinter van 2001 , 313 cdi diesel cranks and will not start. With starting fluid it starts and keeps going fine. 🤔
I tapped on the fuel tank a few times with a small hammer and my dodge fired right back up. And used a LITTLE started fluid, reason being I've heard of engines getting ruint if you spray to much
Been having this problem thanks a lot. Keep it up 👍👍
I use this method as a diagnostic tool on a petrol engine to check if the ignition system is working, it 'could' help in diagnosing a bad fuel pump ? But it's not a hard and fast diagnosis that 'you have a bad fuel pump' there's a few more variables of what could be wrong ..... great video though 👍👍
Paul Parsons Correct. A good indicator engine is not getting fuel. Thanks for watching.
that describes my 2001 ranger to a T. When the weather is warm, it starts just fine. Once we get cold temps, it will only start if I use starting fluid. but once it starts, it runs just fine. Is my fuel pump really the problem? The fuel pump must be pumping fuel once it starts running because it doesn't die.... Any ideas would be greatly appreciated! FYI, I have replaced the fuel filter.
I have a problem with a 5.2 dodge. It stalls after about 25 minutes or 25 miles. I tried the starting fluid and it started up for a few seconds. So I replaced the fuel pump its in the gas tank along with the filter and regulator, its an assembly. It still stalls after about 25 minutes. It will start back up after a 30 minute cool down and run another 25 minutes. Any help? So with the starting fluid it will start for a few seconds. My guess is the ecm is not sending a signal to the fuel pump after it warms up.
Word of Caution!!! If the car backfires you can catch the car on fire. Best to use the carburetor cleaner sparingly and have a fire extinguisher at the ready!!! Caught my Yukon on fire today.
Mine caught on fire just a few days ago and i was scared as hell. Luckily i was able to turn it off😂
Thank you for that its just how mine is .I though fuel pumps had gone down but not sure ...but now i am 😀😀
Be careful not to use too much starter fluid, especially when the engine is not cranking while spraying the fluid. My son literally blew up his intake manifold.
@walker.wayne5772
The fact is I did warn my son to go pretty sparingly on the starter fluid. But he had other ideas, as sons sometimes do...
Yup, my Air filter and housing blew right off the car. Did not realize it was too much starting fluid !
@@bhagyawanbhagat2361
Starting fluid should come with a predominant warning label on the can.
Your not 100% right, what you have determined is that you have a fuel delivery problem. Corroded injector harness, blown fuse controlling injector, harness at fuel pump and a few others. Describing it this way may lead DYI’s on the wrong path and pull tank , put new pump in and still no start. Starting fluid , as others have said may not be good if used incorrectly, get air intake cleaner or injection cleaner, less volatile but still combustible to achieve what your describing and greatly reduces accidents
What if you get the car started spraying starting fluid, and it runs fine, idles fine, but will not crank on the initial start.
Will this work with a Chrysler 300 i think my fuel tank is goin up too but i haven’t been able to figure out if that’s the issue for sure.
Good video very educational.
Here's my situation my car wouldn't start.
Use starting fluid CPL times started then died. Tried one more time fired up I let car run to engines temp. Now starts again I have a manual aswell.
Any help I appreciate fuel pump going bad?
Maybe starting fluid cleaned out your egr
Probably you had a light engine flood situation. The starter fluid helped starting once. So problem "solved". ;-) EGR has nothing to do with it.
So if it fires up and keeps running does that mean it's the fuses?
Thisw 2works ok as an early test. It proves that you have spark. It eliminates that entire system. How ever it only proves that the fuel system is not working. Mor4e testing needs to be done to prove what fuel component is the malf. Many things can cause the pump not to run.
Yes but the first thing you check is the relay/fuses start the cheapest is that doesn’t fix it then you replace the fuel pump assembly it’s cheaper and easier
@@chancesmall7026 how do you do this? I replaced the relays but still nothing, I don’t hear a click when the car is in the on position like I use to
@@Francofit you need two people to be able to do this trick one needs to lay down in the trunk with your ear against the inside of the trunk, have someone in the car, don’t start the car up but turn the key over all the way. Whoever’s laying in the trunk should hear a sound if you do your fuel pump is fine if not it’s something else. What’s wrong with your car might be able to help
@@chancesmall7026 my car won’t turn on anymore, I bought the new relay for it but nothing, it starts with starter fluid but then it dies right after, I tried hearing a click while someone starts it but nothing, I also can’t hear the click anymore inside like I use to when i put it into the on position
@@Francofit yea it’s most likely your fuel pump bud im sorry but just in case check your fuel filter first it’s a lot cheaper and sometime they get clogged up, also buy some Lucas oil fuel injector cleaner/fuel system cleaner try get it started and run some of that through it. If that doesn’t work it probably is the fuel pump I’m sorry
I needed you to show me the relay was out just once more.
According to the comments half the team didn't understand why I pulled it. So I should have showed it 47 more times apparently, lol.
Ctfuuuuu Goofy rewind the video
My ranger wont start and I did this and it fires up for a sec or 2 then stalls out. Any chance it could be something other than the fuel pump?
Brake cleaner works great too. Ss long as you buy the brake clean that says "Extremely Flammable " on the label. Not a lot needed and I usually crack the throttle about half way or a bit less so the spray gets by the butterfly in the throttle body.
Be very careful using brake clean. This will and can create phosgene gas which amounts to nerve Gas!
i use the top of a flexible straw wd40 on a starter fluid can that way i can twist and get it inti the intake
A CRANK NO START does not always mean a bad pump, you also have to check the basics SPARK, FUEL, AIR COMPRESSION as well, short to ground is the ecm commanding the fuel pump on when the key switch is turned on.
But, this video is about fuel related causes, not the others... Even though this method does verify spark and compression (If it fires with starting fluid)
Well he obviously ruled spark and air if it starts but does his video mean its the fuel pump not necessarily i like to think of it of starting the investigation in the right direction ruling spark and air and focusing on fuel like pump relay short in the wire to the pump etc…
🤡🤡🤡🤡🤡🤡🤡🤡🤡
Would this also verify bad injectors? My fuel pump is new and fuel pressure is normal. Crank no start situation, replace crankshaft position sensor, checked, put new spark plug wires, test light shows power to the spark plugs. Soon replacing temp sensor and cleaning injects I guess.
Would confirm a no fuel situation. If it fires with fluid it means you have everything else working, but it's not getting fuel.
Can I use carb cleaner if I don't have starter fluid?
I’m not a mechanic but it should work, you just need anything that will combust.
Thank you ,thank you I now know the problem with my no starter
Wow thanks that saves me a lot of unnecessary work
So what it means when you add this starter fluid and you still get a no start ?
Could be a no spark, or mechanical issue.
@@BlaserBuilds i get plenty of spark just no turn over , even when using this method.
@@lilrican1971 Do compression check.
So what if mine cranks no starts. But starts with starting fluid as this one did, but mine will stay running once started with starting fluid. What’s your thoughts on that? It’s a foxbody mustang 5.0.
Usually that's not enough fuel when cranking. Vacuum leak, or something else.
Could it also be clogged fuel filter
The video is old, but I only needed yesterday. One spray was enough to start the engine . Now I confirmed that I have fuel pump problem.
Does anyone know where in heck is the fuel pump relay on an 88 caravan dodge, owners manual does not mention it, not the Haynes Motor manual? You can jump the fuel pump relay to eliminate that item as well. I would ask is it Possible to bypass the in tank fuel pump easily with just an inline fuel pump ? thanks.
So is it pump or relay I just put a new pump in and getting this result. When I turn key pump turns on , but not over
Exactly what we did with my Smart 4/2.. with stuck fuel pump. It had a crank / no start. Worked. And pump is replaced.
I bought a 84 old pontiac. It wont start. I spray a bit of starter fluid and it will start right away. I could drive around for 10 min. Shut off the engine and the car will start again just fine. It seems to only need starter fluid when the engine is cold. I changed spark plugs already. Any suggestions?
So if the truck wouldn’t have started at all the fuel pump would be good per say?
Wym by that does it turn on atleast
so if you take off air intake and poor gas directly in or shoot starter fluid in intake and nothing happens is it not getting any spark??? just checking...thax
An easier way to check for spark would be to pull a spark plug out, attach it back to wire and crank it over while the plug threads are grounded.
its definitely a spark issue... no codes at all...maybe my computor took a shit...i work alone and do not have remote starter..very tight compartment ...
@@roadstar499 A bad sensor (cam/crank) could cause a no spark situation even if computer works.
i did have a p1345but since i replaced timing chain no codes anymore...i think it could be coil...very much a pain in the ars! hope to fix this issue tomorrow ...thax
This video just helped me today thank you
your right on any car your advice helped me with a audi 17 model thanx man
I have check the relays or fuses On the open road it runs beautiful like a new vehicle Problems develop at low speed under 40 mph.
Mine have same problem what did you do?
i have an automatic 2001 VW jetta 2.0 - it sat since december 2021 until now april 2023
mobile mechanic came by and put in a brand new battery, refurbished starter, cleaned up the rusted ground connection from the starter to the chassis or transmission whatever it is
the car now cranks, but won't start - he then took off one end of the cold air intake and sprayed something into the engine while i started it up but then it died after 2 seconds
the gas is original from probably november 2021 , i have about half a tank
he is telling me that probably the fuel pump needs to be replaced
any ideas if its just bad gas ?
i have 87 octane in there
It could also be the fuel rail pressure sensor on the fuel rail itself, or a plugged fuel filter. Use your scan tool and eliminate the possibilities.
Scan tool?
This! Using ether just shows that you have no restrictions from the TB/carb and you have spark. Nothing more he’ll you could do this and start the engine and just be out of gas lol
Solution One!! You’re absolutely right. Ford Junk! If you miss treat a Toyota or Honda or Nissan... it’ll be awhile before it starts to give you trouble but even if you treat a Ford good it’ll still find away to mess up on you.. That’s just my experience...
Thanks for getting straight to the point
WD-40 a bit safer than starting fluid.
to my surprise it works well on 4 stroke gas engines.
Diesel? not so much on cold start, but it helps & leaves a little lube that ether [starting fluid] removes.
I am having the same problem with my 2011 Hyundai Sonata it turns over but want start I was told it could be the fuel pump relay are the crank shaft position sensor . Does this sound right to you?
Vietnam Vet Could be... if it tries to fire with this method it's not getting fuel for some reason... Some computer may use the crank sensor signal as an input to fire injectors when it knows engine is turning.
ok thanks
I
My van was going great then one morning I turned it over and it cranked over but didn't start my mechanic says it could b electrical fault but it starts with starting fluid do u reckon it's the pump that's gone
of corse its a fuel pump issue and this is what the vid just explained. There clearly isn't fuel being supplied so check the relay then check the pump itself
@@matthewtoomer2181 you're wrong... And you've been wrong several times basically for the same reason... The video suggests that you got a bad fuel pump if you can show that you have spark and it will fire.. it doesn't say you might have a bad ground or you might have a bad relay or you might have a bad control signal or you might have a bad injectors or you might have a clogged fuel filter or you might have a pinched fuel line... The video suggests that what he does indicates that you have a bad fuel pump nothing more and that's why it's incomplete.
Thanks for the video man, although you're getting a lot of flak from some ignorant people.... they probably pour the milk before the cereal.
I had a bad fuel injector in cylinder 5. I got that taken care of. Before that I had the fuel filter changed. After the fuel filter was changed, the car started sputtering and will die out once it warms up. Is this caused by the fuel pump?
So I replaced the fuel pump, assembly, filter and spark plugs. Mine did the same thing, so I'm assuming it's the relay.
Great idea ! Thanks for posting
So,logical and cheap ! 👍🏻💪🏻🤞🏻
I just had this problem. I pulled the fuel pump fuse, and it was good. This is the first thing you should do. Then check voltage at the relay terminals which were good for me. Then I changed my relay and everything started working. Then I plugged my old relay back in everything worked. The connection between the relay and the housing pins oxidized. Just had to pull and reset the relay.
Exactly what I needed to see!!!! Thanks! I have subscribed :)
This works!!! Carb vapor worked in a pinch too...
So if it starts and runs with starting fluid what should i do?
get fuel [ump
How do you know that it’s not your pcm ecm. On my car the fuel punishable controlled by the pcm. If a connector comes lose or the pcm malfunctions, the fuel pump doesn’t work. Also, if you get a backfire spraying that fluid in your intake, you might blow a hole in your air duct work.
Before I change the fuel pump..... I have followed all your trouble shooting advice (short of using a pressure gage). I can hear the fuel pump when the key is turned over to accessory it sounds strong and when my wife turns the key over it does not sound as strong. To be sure, should I spend the money on a pressure gage? Thanks for a great video.
Men obviously can just turn the key strongly and given that universal fact pump runs strong, unlike women using machine causing dainty pumping by dainty key turning with feminine energy contaminating manly machine.
i did as you said turned on a bit with starting fluid then turnned off, but why can i still hear my fuel pump humming noise under truck like it still works?
Pump is bad
cool I am having weird random non starting problem on my f 150 next time it acts up i will try this, at least it will narrow things down my mechanic cannot duplicate the problem.
Could it be my fuel injectors? I cracked open the fuel rail and cranked it and fuel squirted out.
Well mine is a different case car only cranks. But when i give it starting fluid it starts and runs normally not for a short time but runs and i can drive it just fine. When its off it can't start again unless starting fluid is applied doesn't matter if engine is hot or cold. It doesn't start even if i switch on it right back after switching off.
Did you find what is the problem?
Pls advice what is durability of diesel fuel pump vw polo
There's a lot more it could be besides the pump. Filter, pressure regulator to make a couple
By gally this guy is A genius!
You could have fuel injector failure as well. The test confirms spark and pressure but does not isolate the source of the fuel failure.
This video is going to save me a thousand atleast.
It can be multiple things actually. Mine is doing that right now but my fuel pulp turns on and my car will run until you shut it off then there is no power to it anymore. Last time my car wouldnt start and wasnt getting any fuel it was because of my egr. It can be many problems, it can also be getting vapor locked from the canister.
Just to add on to this, make sure no fuel line is touching anything hot. If you you can use a hanger to space it off of the heat. It can make it vapor lock. Check all sensors not just the relay. Make sure your fuel filter is not clogged as well and that there are no tears in your wiring.
Mine is not starting. Now what? I don't want to tow it. How do I make it drive home?
just feed sme drops of petrol in the caburator or intake for injector.. we always do that in mauritius and works great insteaf of buying this spray
Is this the same on any vec
I have a 2004 hyd. Sonato and I just put a new fuel pump in it.. And it still only turns over but won t start
I know the spark plugs are firing but I spray starting fluid and it cranks for just a min than cuts off .. Please help