Wonder if this could be the issue with my 3400 2005 monte? It has gone from around 450 miles per fill up to around 275-300 per fill up. No code showing, hard starts at times, 135,000+ miles.
Possibility, it is old even though it only has 135k miles. Getting close to 150k is when i like to start changing sensors and coils. They all wear out but sensors and stuff like the regulator can be weak and not working at 100% and a light wont come on. did you change plugs at 100K?
@@EfurdGarage Yes changed plugs around 130,000 miles, second set of plugs since I have had the car in 2007. Also changed the plug wires, and every sensor except the o2 sensors. I don't hear any fuel pump wine noise either. Seems like it has hard starts during cooler weather and the gas pedal feels a little stiff. Today it fired with no hesitation, later iI could fire it up and it would take a few seconds to start instead of instant. Took the hose off the top of the fuel pressure regulator today, before I started the car and there wasn't any fuel that came out.
Any chance you could give some advice on changing the hard vacuum line? I don't even know where to get the part for it or how to change it. Theres like no information online about it lol
I kept overthinking it that I needed to undo the 2 wrench part before the screw. Don't know where my brain got that idea but thank you for correcting me
I have a 2003 and it won't start sometimes it seems like it's flooded then I wait 30 minutes or an hour and I go out there after trying to crank it and it cranks and it runs all day after that I was wondering if a fuel regulator causes it to flood
I got no fuel in the pressure line so i installed an old good pump mainline ina bucket of fuel. I got pressure and the engine would not run or start but pressure was present. What keeps the fuel from getting into the engine?
Fuel filter, bad pump, trash in lines. Bent/kinked line. I have had lines that i disconnted on both ends and with an air blower shot stuff out the other end. You can do what you did to get fuel to the engine but the engines requires a a certain fuel pressure before it will even start. So a weak pump will be hard or wont start an engine
@@EfurdGarage I had super pressure at the inlet on the engine but i noticed the fuel pressure regulator line off or broke off but i do not know where it connects but it is connected to the regulator but where does the other end connect? If this vaccum line is not connect then i assume the gas will not go into the injectors?
There should b a Schrader valve on the fuel rail to release fuel pressure. Just b carefull fuel will spray out. ....make sure the car is cool before you release pressure
Thanks for the informative demonstration!!! Quick question, the metal hose to the bottom of the FPR, mine doesn't seem to have the slack yours does? Do I need to just pull harder or did you disconnect something else? I cant get mine to rise out so I can get my C wrench in there :( Thank you for any advice!!!
Well i assume there is a plastic holder that holds it to keep it from vibrating but my top end was taken apart by the previous owner so its possible they didnt put it back correctly
Sometimes a bit of wd40 will help on the hose if you can just get a little gap between the hose and regulator. Also may habe to use some pb blaster on the threaded end
I have this same engine 3.4L 2005 grand am it starts fine most of the time but at times it will kinda hesitate to start when driving it runs poorly the more I give it gas the faster i go like about 50 mph it sputters and hesitates I got po300 random multiple misfire code and small evap leak plug wires seem fine service engine soon light comes on and off and will blink then stay on and go off again the car is getting over 200 degrees and getting very bad gas mileage was on half a tank used that up in 2 days barely went anywhere what's wrong thanks in advance for help
check vacuum lines around intake, look at the plugs for rust or oil, is it getting over 200 while driving? put your hand over the exhaust pipe while its running and see if you get water on your hand
first you will want to check the wires to the coil and make sure its plugged in and no damaged wires. i believe there was a sensor under that cover as well be sure that it is good and plugged in. being a miss for the most part it should be the plugs or coil. it could possibly be the crank sensor since it can cause a miss and not start. i would possible look into the cam sensor as well.
i have heard some people have said it will smoke. bad valve guides can cause it to smoke. as well as thin oil on a high mileage engine and several other things
@@EfurdGarage thank you for the response. How in the heck did you get that out mine is hitting back of plenum I though it was the throttle body bolt took it out but its hitting the plenum when I try to pull it out did you have the same issue
@@gary-ln9td the pressure regulator should pop out of the fitting then once up the line has a little slack hopefully just enough to get a wrench on the line and loosen it
My car starts right up when its cold.....but after I've driven it a while / it's warmed up it doesn't start & I have to really push on the gas pedal to get it to start. Could this be the Fuel Regulator as well? Thanks!!
yes very possible it is the regulator, could also be the mass air flow sensor. the fuel pressure regulator is the cheapest of the 2 and you can also try getting maf cleaner and cleaning the maf
I just did this fix and messed something up. I'm not able to work on the car for a few days but if someone could give me some pointers I would appreciate it. the problem is now I think i cause a gas leak. when I put the car in the on position the fuel pressure goes up and falls back down. when the car is running it still works fine and I have good pressure but I think it is just pumping faster than its leaking. my thought is that when I pulled the regulator out to get access I might have damaged a seal or something.
I would double check. You should be able to see fuel and smell it. Make sure the line is tight and not criss threaded. If you remove it go ahead and get a new o ring.
@@EfurdGarage thanks man from under the hood I dont see anything so I think its further back on the line. I'm going to get under the car tonight. is it possible that when I pulled the line forward like 3 inches to put in the new regulator I broke something further back?
Thanks, gonna change mine got 230 000 on mine must be time , can this cause misfires, do you know , I assume it can just want your opinion Thanks learned alot from your videos
My only symptom I’ve noticed is my fuel economy doesn’t seem good. Starts good and everything but my check engine light did come on so I’ll have to look at the code anyone have this happen
Yes check the code to be sure. But that is one symptom, which it only needs one symptom. But being the way computers are set up poor fuel ecnomy could be a wide range of things
@@javencharles thermostat is under the intake, you will see the radiator hose going to it. honestley its best to replace both it and the engine temp sensor at the same time
@@EfurdGarage thank you, I was out there yesterday and found out I just had to pull it the right way. I was just a little too worried about damaging it from pulling too hard lol
Great vid! Dude! Thanks for sharing! 👍🏻
Your Welcome, thanks for watching.
Wonder if this could be the issue with my 3400 2005 monte? It has gone from around 450 miles per fill up to around 275-300 per fill up. No code showing, hard starts at times, 135,000+ miles.
Possibility, it is old even though it only has 135k miles. Getting close to 150k is when i like to start changing sensors and coils. They all wear out but sensors and stuff like the regulator can be weak and not working at 100% and a light wont come on. did you change plugs at 100K?
@@EfurdGarage Yes changed plugs around 130,000 miles, second set of plugs since I have had the car in 2007. Also changed the plug wires, and every sensor except the o2 sensors. I don't hear any fuel pump wine noise either. Seems like it has hard starts during cooler weather and the gas pedal feels a little stiff. Today it fired with no hesitation, later iI could fire it up and it would take a few seconds to start instead of instant. Took the hose off the top of the fuel pressure regulator today, before I started the car and there wasn't any fuel that came out.
@@EfurdGarage Even had it checked with a reader last fall and nothing was showing, even though no codes are showing.
Hey do you no where the best place is to hook up a vacuum gauge is on a 03 grand am gt V6
Vaccum gauge run off full engine vaccum. So some where off the intake manifold. If i recall there maybe a blank port that has a cap on it
Thanks I kinda figured that , just wanted to get an expert opinion 😉
Any chance you could give some advice on changing the hard vacuum line? I don't even know where to get the part for it or how to change it. Theres like no information online about it lol
There is not much, nor can you find them even on summit racing. Best thing to do is new rubber about the same size or find one out of a salvage yard
I kept overthinking it that I needed to undo the 2 wrench part before the screw. Don't know where my brain got that idea but thank you for correcting me
well sometimes its easier to leave something bolted down to turn a wrench, other times you have to have it lose to get room.
like your shirt brother
Thank you!
That vacuum line on top it usually breaks what can that do to your car if you don't fix it .. the white vacuum that connects to the intake
cause alot of issues, a vacuum will cause it run run awful, and depending on where it is running to can throw what ever sensor its too off
I have a 2003 and it won't start sometimes it seems like it's flooded then I wait 30 minutes or an hour and I go out there after trying to crank it and it cranks and it runs all day after that I was wondering if a fuel regulator causes it to flood
Yes it can, and usually does
@@EfurdGarage thanks!
Great vid! Dude! Thanks!!! 👍🏻👍🏻
Glad it could help, your welcome
I got no fuel in the pressure line so i installed an old good pump mainline ina bucket of fuel. I got pressure and the engine would not run or start but pressure was present. What keeps the fuel from getting into the engine?
Fuel filter, bad pump, trash in lines. Bent/kinked line. I have had lines that i disconnted on both ends and with an air blower shot stuff out the other end. You can do what you did to get fuel to the engine but the engines requires a a certain fuel pressure before it will even start. So a weak pump will be hard or wont start an engine
@@EfurdGarage I had super pressure at the inlet on the engine but i noticed the fuel pressure regulator line off or broke off but i do not know where it connects but it is connected to the regulator but where does the other end connect? If this vaccum line is not connect then i assume the gas will not go into the injectors?
@@thorthunder3227 should be connected to intake. Those lines are known to break. But without vacuum it will not properly work
@@EfurdGarage The injectors was not opening for the fuel. Where does the signal come from to fire the injectors for the fuel?
@@thorthunder3227 pcm, crankshaft sensors, cam sensors, maybe ignition control module
Thanks so much! Was able to do this on my own, wouldn’t have been able to without this video!!
im glad it could help
Thank you . Perfect , just the info I needed to fix a leaky one !
glad it could help
Any info on p0446 on the same car
Evap system. Typically the vent/purge valve.
Where does the end of teh pressure vaccum hose go? both ends
One on regulator other on maifold vacuum port
Would this make the car stall while idle?
it is a possibility as well as vacuum leaks
How did you release the fuel line pressure or was the car sitting for awhile before you replaced the regulator?
I let it set for a few hours. Some cars have a release but I don't remember seeing one on this car
There should b a Schrader valve on the fuel rail to release fuel pressure. Just b carefull fuel will spray out. ....make sure the car is cool before you release pressure
Thanks for the informative demonstration!!!
Quick question, the metal hose to the bottom of the FPR, mine doesn't seem to have the slack yours does? Do I need to just pull harder or did you disconnect something else? I cant get mine to rise out so I can get my C wrench in there :(
Thank you for any advice!!!
Well i assume there is a plastic holder that holds it to keep it from vibrating but my top end was taken apart by the previous owner so its possible they didnt put it back correctly
I’m having this some issue but it’s had 0 service at all
Sometimes a bit of wd40 will help on the hose if you can just get a little gap between the hose and regulator. Also may habe to use some pb blaster on the threaded end
Thanks a lot man!, will try to do this today...this video really helped!!
Thanks for watching
I have this same engine 3.4L 2005 grand am it starts fine most of the time but at times it will kinda hesitate to start when driving it runs poorly the more I give it gas the faster i go like about 50 mph it sputters and hesitates I got po300 random multiple misfire code and small evap leak plug wires seem fine service engine soon light comes on and off and will blink then stay on and go off again the car is getting over 200 degrees and getting very bad gas mileage was on half a tank used that up in 2 days barely went anywhere what's wrong thanks in advance for help
check vacuum lines around intake, look at the plugs for rust or oil, is it getting over 200 while driving? put your hand over the exhaust pipe while its running and see if you get water on your hand
@@EfurdGarage I just unplugged the EGR valve and it doesnt hesitate or sound like the exhaust is clogged anymore but service engine light is still on
@@EfurdGarage yeah its getting a hair over 200
Thank you so much for making this video!!!
Thanks for watching, glad you enjoyed
will this cause my car not to start at all?
It can. If it dosnt allow. The fuel to regulate properly it wont start..
01 grand am 2.4 ran good one night went to start it next day and it was missing ran code it was p300 put new coil and plugs and it won’t start at all
first you will want to check the wires to the coil and make sure its plugged in and no damaged wires. i believe there was a sensor under that cover as well be sure that it is good and plugged in. being a miss for the most part it should be the plugs or coil. it could possibly be the crank sensor since it can cause a miss and not start. i would possible look into the cam sensor as well.
Efurd Garage it was the coil housing was cracked causing all the missing and knocking replaced it started it up and runs like a champ again
Will it cause it to smoke mechanic said might be rings we replaced spark plugs and wires and pcv valve but still smokes ??
i have heard some people have said it will smoke. bad valve guides can cause it to smoke. as well as thin oil on a high mileage engine and several other things
Thank you for the video was the torque a t27 and also what size line wrench would this take thank you
I wanna say t-30 could be a 27 cant remember it has been awhile. I used a cresent and a 15/16 i believe it cals for a 22mm
@@EfurdGarage thank you for the response. How in the heck did you get that out mine is hitting back of plenum I though it was the throttle body bolt took it out but its hitting the plenum when I try to pull it out did you have the same issue
@@gary-ln9td the pressure regulator should pop out of the fitting then once up the line has a little slack hopefully just enough to get a wrench on the line and loosen it
My car starts right up when its cold.....but after I've driven it a while / it's warmed up it doesn't start & I have to really push on the gas pedal to get it to start. Could this be the Fuel Regulator as well? Thanks!!
yes very possible it is the regulator, could also be the mass air flow sensor. the fuel pressure regulator is the cheapest of the 2 and you can also try getting maf cleaner and cleaning the maf
Thanks man I recommend a swivel t-30 tool and great video!
Thanks. Just used what i have. I dont own any swivel torqures and honestly havnt seen any that i was aware of. Will look into some
I just did this fix and messed something up. I'm not able to work on the car for a few days but if someone could give me some pointers I would appreciate it. the problem is now I think i cause a gas leak. when I put the car in the on position the fuel pressure goes up and falls back down. when the car is running it still works fine and I have good pressure but I think it is just pumping faster than its leaking. my thought is that when I pulled the regulator out to get access I might have damaged a seal or something.
I would double check. You should be able to see fuel and smell it. Make sure the line is tight and not criss threaded. If you remove it go ahead and get a new o ring.
@@EfurdGarage thanks man from under the hood I dont see anything so I think its further back on the line. I'm going to get under the car tonight. is it possible that when I pulled the line forward like 3 inches to put in the new regulator I broke something further back?
@@greendanks possible but you should see it on the ground i would think. If you dont find the leak sounds like maybe a filter or pump issue
Thanks, gonna change mine got 230 000 on mine must be time , can this cause misfires, do you know , I assume it can just want your opinion Thanks learned alot from your videos
Yea, when the vacuum pulls the fuel past the broken diaphragm it could.
My only symptom I’ve noticed is my fuel economy doesn’t seem good. Starts good and everything but my check engine light did come on so I’ll have to look at the code anyone have this happen
Yes check the code to be sure. But that is one symptom, which it only needs one symptom. But being the way computers are set up poor fuel ecnomy could be a wide range of things
@@EfurdGarage 2 codes. Small exhaust leak and thermostst
@@javencharles That will do it.
@@EfurdGarage which one the thermostat?
@@javencharles thermostat is under the intake, you will see the radiator hose going to it. honestley its best to replace both it and the engine temp sensor at the same time
Thank you ✌🤠
thanks for watching
Cool intro
Thanks
How the fuck did you move your line. Mine feels like its basically stuck where it is...
check from the regulator down and make sure there are no more holders. it is possible that a previous owner removed them from mine.
@@EfurdGarage thank you, I was out there yesterday and found out I just had to pull it the right way. I was just a little too worried about damaging it from pulling too hard lol
@@smithtyler4557 yea i dont blame you for being a little worried about damaging it.
Thanks bro
You are one long-winded hombre! You lost me at hello, my name is............
considering i never say " hello, my name is" i take it you dont listen