That is exactly where I am with a 98 ram that got towed in, no pcm communications but airbag and abs were working, no CE light, no gauges... All power and grounds good at the pcm connector and still held up under load. Jumped ASD relay to force power and still nothing. Disconnected everything aftermarket including radio harness adapter. Showed 1.9V on the 5V line so assumed pcm was bad and had internal regulator failure. Got a used pcm and had vin programmed, so it had been working, but put in the truck and and nothing. Didn't know a grounded 5V line would disable the entire PCM, assumed it would overcurrent then cut off and give a code about 5V reference low. Will certainly try checking both 5V circuits for short to ground and see if the pcm wakes up.
Man that’s a lot of work brother and you have it down man !!! I got a old dodge ram this year for cheap but a young guy owned it and cut wires and put stereos and crap in so periodically some things just start working some things stop working and now no start. I hope I don’t have as much trouble as you did but your video did help me out a lot. Good job brother wish you were closer.lol
So very specific and accurate. I've been having issues with this condition for weeks now. Replaced the Crankshaft Sensor and the Camshaft Sensor (Ignition 3 Terminal Distributor Ignition Pickup). Going down this path today. tracking down each wire. 2001 Dodge Dakota but the same process. Thank You so very much for your tenacity. Your title specificity may have narrowed the views but I'm glad I got here.
Thank you so much, you are the first person i could find who would actually explain the diagnosis process fully and the reasoning of your approach. This will help people like me so much who just couldn't wrap their head around the computer system because everyone explains it tidbit at a time and never clearly. Renewing my Alldata subscription and finding this problem!
Thanks bro I've been struggling for 5 days with my dakota 3.9l and you just gave me some the cure for my issue thank you for the knowledge man really appreciate it. I'm guna stay up till I fix this bithch cause Florida days are getting rough.
I want to understand and comprehend reading electrical diagrams but my learning disability makes it difficult. I really liked this video alot and it would be cool if you can make videos teaching how to read electrical diagrams for newbies.
Wish you were near me in Texas...I have a 2001 Dakota that had overheated, a hose busted and the engine over heated as a result while driving down the road. I tested what I knew and found the heads were warped due to over heating, so I removed the heads and had them resurfaced and put a new timing set in and still have a NO START, I get a check engine light but it says the ASD relay isn't getting proper voltage. I get no click either. it turns over and I smell gas just no start. I'm lost when it comes to electrical that's the only thing I haven't learned over the years. I can tare an engine apart and rebuild it but I lack when it comes to wiring diagnostics. I'm here trying to learn, but I haven't seen any issues similar to mine yet.
Good video. Have the exact problem on a 2002 Ram 4.7. No 5v reference. My idea is checking each Sense line from each sensor at the PCM connector to Gnd. A quick way ro determine which Sensor is bad. Hopefully it works
Jackson , MISSISSIPPI , is where I was going to grad school when my 96 ram started doing this. Jackson is the murder capitol of the U.S., so not where you need your car to break down.
Thanks , my 1996, 5.9 ram does this about every six months, and the repair shop has to tow it, then replace the crankshaft position sensor. I’m convinced something Elese is going on for this to happen EVERY SIX MONTHS. Must be a broken wire or a shorted wire somewhere.
Questions from a guy in the middle of nowhere Wyoming. I really am getting a lot out of your videos, but I need a list of tools. Make and model of that scan tool? How about that handy lime green voltage tester? 2002 Dodge Durango no start. Cranks, fuel at the fuel rail. No spark at plugs. Also, hot here. Those little pins you use.
I'm a little late, but you should check the ignition coil if you have no spark but good fuel. The truck only has one coil, when it goes bad the whole truck goes down. Also worth checking distributor cap and button.
Nice video, good explanations with logical steps to troubleshoot the issues. Do you have a preference in automotive repair subscriptions (All Data, Mitchell On Demand, Chilton etc)?
I’m having a crank no start issue with with 97 ram 1500 5.9 just like this one I don’t hear the fuel pump power on and my relays don’t click either, I changed my crankshaft position sensor, spark plugs, distributor cap, Rotor and the ignition pickup inside the distributor, ASD Relay and still no start i haven’t check my PCM yet
I was so impressed with your video how are you diagnosed it and you had your computer and your gauges in the screen tracing the wires and telling what why are the colors aren’t cutting wires really intense it’s the word that I with use. And we have to have a lot of patience to diagnose that and trace it down fantastic job I watch the entire video with us skipping through it I have a neighbor that has a vehicle same here and had the same issue I want to try to help them out but I’m not getting into that forMaybe I’ll just see if the ASD relay is bad great video though great workmanship and great knowledge!😊
Yep, I thought the it was my fuel pump & after watching this video I’m convinced that’s it. The truck was running fine the day before and the next morning it would crank and run just a second & die. And I couldn’t hear the fuel pump engage either. So I’ll be buying one today. $$$ 🤣
Hoping you can help me...looking at a 1998 ram 1500 with a 5.2 that sat for 4 years. Ive got a crank but no start condition. Verified no spark coming out of coil. I ran out of time that evening, so disconnected the battery and let it sit overnight. Came back the next day hooked up the battery and turned the key. it started right up. Then, i had a low gas indication, so figured id get 5 gallons of good gas in it to run it for a bit. Shut engine off, added gas, and now Im back to same problem....crank but no start. Verified no spark out of coil again. I discovered the ASD relay and swapped it, but no change. It ran really good the night before, so Im pretty sure im dealing with the ASD relay not clicking over which is keeping the spark off. When I turn the key I can hear the fuel pump kick on, so I know that is working properly. Just no spark out of coil. Next time I go back, im going to start with those two 5 volt wires you were looking at (assuming this vehicle has the same pin outs. Any other suggestions appreciated.
Hayes, what do u think the reason is these old dodges dont hold much value.. those little v6 engines are usually good for close to 300,000 miles.,., I think the have the A500 transmission,, do they tend to have alot of electrical problems? I know they have very squeaky suspension systems,, everyone that passes by my hose sounds like it need a 100 point lube job. ha
Lol. I don’t run into many electrical issues on this vehicle. Mostly I get Distributor issues, cam Crank issues.. oh and flexplate issues besides all the COmmon repairs like starters and alternators. But overall they’re pretty good vehicles
I have a 98 with the v6, close to 300k on the clock, engine and tranny are worn out, hard to find a junkyard engine for these trucks that dont have well over 200k on them., getting them rebuilt is too expensive and sketchy. so im kind of stuck. talked to some engine rebuilders and they are having trouble sourcing quality parts. when the engine explodes, one company blames the other company.. lots of camshaft issue.. I think its because of poor mettalurgy. no quality control. they open boxes and find metal shavings in the camshaft holes. out of spec lobes, pit holes, ect.. they have to go to the junkyard to find a decent camshaft.. pretty sad,.,.
I have 2004 Doge Durango that I can get started by spraying starter fluid. I can give it gas and it will rev up , but not all the way pass 3 RPM. Idles great. But when I shut the truck down it will not restart.
The schematics come from an online service providers… Alldata or Mitchell.. there are others as well, but those are the top two I believe.. Scan Tool I have is a maximus 3.0 by Matco, but any Scan Tool can access schematic information. They just need to buy the service.
I have a 2005 Dodge Ram 1500.Cranks no start. Although if i tap the gas tank with a rubber mallet it will then start. As if there is something stopping it fir the relay to kick in. My relat is fine and i can here the clucking in engine as if they are working. Any thoughts?
I facing the same problem bit it has new alt and battery I don't know if they did a short cut and wires looks good and those 2 wires the purple white and orange in at 0.06 in both I already fixed some wires the only thing i have to do is the pcm
You doing the same thing that I did but the fuse was burnt just right what would Arco and work for months can you give me problems then go right back to working until one day it didn't mistaken the tester in the hole the fuse for it good until I pop the tops off all of them and then I found it
Had the exact same problem on a RAM 4.7. it over heated because of a bad radiator cap and couldn't start after that. Traced the problem to a shorted out Crank Sensor . When I unplugged the cable to that sensor, the 5 volt line came back alive. Don't assume you have a bad PCM if your 5v reference is DOA. Those output circuits on Automotive electronics have good protection against shorts. They just shut down until the short is removed. I know. Retired Test Engineer here
BTY, there is usually only 1'+5vdc reference signal that is connected to 5 or 6 different sensors. Mostly MAP, TPS, Crank Sensor, CAM sensor, even AC pressure sensor. Most likely failures are the ones in the engine block. The Crank Sensor and CaM sensor. They get affected most by the heat and break down and short out. Or open up.
سلام عليكم استاذ احترق عقل محرك عند صار تماس حساس كرنك مع بعض و عند ذهاب إلى كهربائي تم تبديل حساس كرنك و عقل محرك و من ثما ربط بطاريه ... لا يوجد فولتيه في حساس كرنك و حساس كم شفت ...هل داينمو احترق سلكات أو قنطره . ولا تعمل سيار نوع سياره دوج كرفان موديل 1993 حجم محرك 3300
Hayes, 1st time looking at your video, and excellent diagnostic and repairs.
Welcome aboard!
Man THESE are the guys we NEED on TH-cam. Thanks brother!
That is exactly where I am with a 98 ram that got towed in, no pcm communications but airbag and abs were working, no CE light, no gauges... All power and grounds good at the pcm connector and still held up under load. Jumped ASD relay to force power and still nothing. Disconnected everything aftermarket including radio harness adapter. Showed 1.9V on the 5V line so assumed pcm was bad and had internal regulator failure. Got a used pcm and had vin programmed, so it had been working, but put in the truck and and nothing. Didn't know a grounded 5V line would disable the entire PCM, assumed it would overcurrent then cut off and give a code about 5V reference low. Will certainly try checking both 5V circuits for short to ground and see if the pcm wakes up.
Man that’s a lot of work brother and you have it down man !!! I got a old dodge ram this year for cheap but a young guy owned it and cut wires and put stereos and crap in so periodically some things just start working some things stop working and now no start. I hope I don’t have as much trouble as you did but your video did help me out a lot. Good job brother wish you were closer.lol
Impossible to follow him
So very specific and accurate. I've been having issues with this condition for weeks now. Replaced the Crankshaft Sensor and the Camshaft Sensor (Ignition 3 Terminal Distributor Ignition Pickup). Going down this path today. tracking down each wire. 2001 Dodge Dakota but the same process. Thank You so very much for your tenacity. Your title specificity may have narrowed the views but I'm glad I got here.
Thank you so much, you are the first person i could find who would actually explain the diagnosis process fully and the reasoning of your approach. This will help people like me so much who just couldn't wrap their head around the computer system because everyone explains it tidbit at a time and never clearly. Renewing my Alldata subscription and finding this problem!
@@SHAD0WZOMBIE awesome! Thx
Thanks bro I've been struggling for 5 days with my dakota 3.9l and you just gave me some the cure for my issue thank you for the knowledge man really appreciate it. I'm guna stay up till I fix this bithch cause Florida days are getting rough.
Did you find out what's wrong with it?
Did you find out what's wrong with it
Great video, man! I needed to see this soo badly...I'm not a wizard with electronics a d back tracing shorts....huge help, thank you!
Great job... Friend. And very illustrated for us, which still learning about diagnostics and repairs. Thanks 👍
I thank you you are the man i learn a lot with may god keep u around for a long time u are 1:52 a beast i take my hat off u my my respect
Hell of a job man! You're damn good at what you do.
Now you just got to get that knock figured out
I want to understand and comprehend reading electrical diagrams but my learning disability makes it difficult. I really liked this video alot and it would be cool if you can make videos teaching how to read electrical diagrams for newbies.
great vid, didnt know abt that ASD relay.. also Ive had good luck with marvel mystery oil quieting the noisy lifters on my old dodge.
I can’t thank you enough for this video
Thanks for this wonderful and
great video as well as educational!
Thank you for everything. Looks very complicated!😮
Wish you were near me in Texas...I have a 2001 Dakota that had overheated, a hose busted and the engine over heated as a result while driving down the road. I tested what I knew and found the heads were warped due to over heating, so I removed the heads and had them resurfaced and put a new timing set in and still have a NO START, I get a check engine light but it says the ASD relay isn't getting proper voltage. I get no click either. it turns over and I smell gas just no start. I'm lost when it comes to electrical that's the only thing I haven't learned over the years. I can tare an engine apart and rebuild it but I lack when it comes to wiring diagnostics. I'm here trying to learn, but I haven't seen any issues similar to mine yet.
Good video. Have the exact problem on a 2002 Ram 4.7. No 5v reference.
My idea is checking each Sense line from each sensor at the PCM connector to Gnd. A quick way ro determine which Sensor is bad. Hopefully it works
This is Tony Chandler you are the man brother
😁 hey man, what’s up 👍🏽
Well, now I have some stuff to look at on my moody truck, lol. Subbed.
Jackson , MISSISSIPPI , is where I was going to grad school when my 96 ram started doing this. Jackson is the murder capitol of the U.S., so not where you need your car to break down.
Thanks , my 1996, 5.9 ram does this about every six months, and the repair shop has to tow it, then replace the crankshaft position sensor. I’m convinced something Elese is going on for this to happen EVERY SIX MONTHS. Must be a broken wire or a shorted wire somewhere.
Awesome thanks from Nanaimo
Great job bro 👍
Thanks ✌
Questions from a guy in the middle of nowhere Wyoming. I really am getting a lot out of your videos, but I need a list of tools. Make and model of that scan tool? How about that handy lime green voltage tester? 2002 Dodge Durango no start. Cranks, fuel at the fuel rail. No spark at plugs. Also, hot here. Those little pins you use.
Looks like a site called alldata
I'm a little late, but you should check the ignition coil if you have no spark but good fuel. The truck only has one coil, when it goes bad the whole truck goes down. Also worth checking distributor cap and button.
Awesome.. i have a 2000 1500 with same issue. Did you have to program the ecm or is it just plug and play? Does it need any flashing or anything??
You are Good Sir !
Thanks for the video good job.
Straight to the point... Thank you!
Nice work
Nice video, good explanations with logical steps to troubleshoot the issues. Do you have a preference in automotive repair subscriptions (All Data, Mitchell On Demand, Chilton etc)?
I’ve used a lot of programs but always seem to go back to Alldata . Identifix it’s pretty cool Too
@@HayesMobileAutoRepair I do like All Data myself, It seems easier to navigate and find what I am looking for more quickly.
@@ginuwine11
I agreed.
I’m having a crank no start issue with with 97 ram 1500 5.9 just like this one I don’t hear the fuel pump power on and my relays don’t click either, I changed my crankshaft position sensor, spark plugs, distributor cap, Rotor and the ignition pickup inside the distributor, ASD Relay and still no start i haven’t check my PCM yet
I was so impressed with your video how are you diagnosed it and you had your computer and your gauges in the screen tracing the wires and telling what why are the colors aren’t cutting wires really intense it’s the word that I with use. And we have to have a lot of patience to diagnose that and trace it down fantastic job I watch the entire video with us skipping through it I have a neighbor that has a vehicle same here and had the same issue I want to try to help them out but I’m not getting into that forMaybe I’ll just see if the ASD relay is bad great video though great workmanship and great knowledge!😊
Yep, I thought the it was my fuel pump & after watching this video I’m convinced that’s it. The truck was running fine the day before and the next morning it would crank and run just a second & die. And I couldn’t hear the fuel pump engage either. So I’ll be buying one today. $$$ 🤣
Did it work ??
@ Yep 👍🏼 got the new one on and it fired right up with no more problems.
Hoping you can help me...looking at a 1998 ram 1500 with a 5.2 that sat for 4 years. Ive got a crank but no start condition. Verified no spark coming out of coil. I ran out of time that evening, so disconnected the battery and let it sit overnight. Came back the next day hooked up the battery and turned the key. it started right up. Then, i had a low gas indication, so figured id get 5 gallons of good gas in it to run it for a bit. Shut engine off, added gas, and now Im back to same problem....crank but no start. Verified no spark out of coil again. I discovered the ASD relay and swapped it, but no change. It ran really good the night before, so Im pretty sure im dealing with the ASD relay not clicking over which is keeping the spark off. When I turn the key I can hear the fuel pump kick on, so I know that is working properly. Just no spark out of coil. Next time I go back, im going to start with those two 5 volt wires you were looking at (assuming this vehicle has the same pin outs. Any other suggestions appreciated.
Thank you
Hope you got paid well with this one?
Boy I wish you was close to me I have the same problem with the same truck
I have this same problem with my 2001 Dodge ram 1500 CMP component cracked pretty bad need new one I think and a crank sensor
I see that you have fixed it i am curious if any of the data lines are shorted to ground could it cause the same no communication issues?
What scan tool and subscription are you using to gain access to schematics and highlight them like that ???
Hayes, what do u think the reason is these old dodges dont hold much value.. those little v6 engines are usually good for close to 300,000 miles.,., I think the have the A500 transmission,, do they tend to have alot of electrical problems? I know they have very squeaky suspension systems,, everyone that passes by my hose sounds like it need a 100 point lube job. ha
Lol. I don’t run into many electrical issues on this vehicle. Mostly I get Distributor issues, cam Crank issues.. oh and flexplate issues besides all the COmmon repairs like starters and alternators.
But overall they’re pretty good vehicles
I have a 98 with the v6, close to 300k on the clock, engine and tranny are worn out, hard to find a junkyard engine for these trucks that dont have well over 200k on them., getting them rebuilt is too expensive and sketchy. so im kind of stuck. talked to some engine rebuilders and they are having trouble sourcing quality parts. when the engine explodes, one company blames the other company.. lots of camshaft issue.. I think its because of poor mettalurgy. no quality control. they open boxes and find metal shavings in the camshaft holes. out of spec lobes, pit holes, ect.. they have to go to the junkyard to find a decent camshaft.. pretty sad,.,.
@@HayesMobileAutoRepair I wish you were in Louisiana
You're a bad mother fer!!
What do you charge for a electrical diagnosis of this nature?
What about the replacing of the computer you said you burned up two? Was the OEM still good?
What soft use for electric schéma ?
I have 2004 Doge Durango that I can get started by spraying starter fluid. I can give it gas and it will rev up , but not all the way pass 3 RPM. Idles great. But when I shut the truck down it will not restart.
What kind of diagnos tool is that I need one I need the skamatic
The schematics come from an online service providers… Alldata or Mitchell.. there are others as well, but those are the top two I believe.. Scan Tool I have is a maximus 3.0 by Matco, but any Scan Tool can access schematic information. They just need to buy the service.
I have a 2005 Dodge Ram 1500.Cranks no start. Although if i tap the gas tank with a rubber mallet it will then start. As if there is something stopping it fir the relay to kick in. My relat is fine and i can here the clucking in engine as if they are working. Any thoughts?
Its not a security problem either.
Hi there I have a question Hayes Mobile Auto Repair
I facing the same problem bit it has new alt and battery I don't know if they did a short cut and wires looks good and those 2 wires the purple white and orange in at 0.06 in both I already fixed some wires the only thing i have to do is the pcm
You doing the same thing that I did but the fuse was burnt just right what would Arco and work for months can you give me problems then go right back to working until one day it didn't mistaken the tester in the hole the fuse for it good until I pop the tops off all of them and then I found it
How you get to them wire diagrams I’m trying to learn wire diagrams
These trucks crank even with computer completely out keep that in mind
I get 0.67volts on all of my 5v refrence signals. Is that normal?
No
Had the exact same problem on a RAM 4.7. it over heated because of a bad radiator cap and couldn't start after that. Traced the problem to a shorted out Crank Sensor . When I unplugged the cable to that sensor, the 5 volt line came back alive. Don't assume you have a bad PCM if your 5v reference is DOA. Those output circuits on Automotive electronics have good protection against shorts. They just shut down until the short is removed.
I know. Retired Test Engineer here
BTY, there is usually only 1'+5vdc reference signal that is connected to 5 or 6 different sensors. Mostly MAP, TPS, Crank Sensor, CAM sensor, even AC pressure sensor.
Most likely failures are the ones in the engine block. The Crank Sensor and CaM sensor. They get affected most by the heat and break down and short out. Or open up.
✌kick back relax
thx
Go over and handle the guy that made it like that!💯🙏❤️🤳
What if your 5v supply reads a full 12
What kind of app is this
@@Bonehead_garage what do u mean?
27:25 look at that wire just twisted and electrical taped lol
43:12 thank god
My dodge ram dies when I change gears. Once I put it in reverse it dies so I gotta put it on the jumping cable
Hayes. That is also my last name. Smart people.
Me too
سلام عليكم استاذ احترق عقل محرك عند صار تماس حساس كرنك مع بعض و عند ذهاب إلى كهربائي تم تبديل حساس كرنك و عقل محرك و من ثما ربط بطاريه ... لا يوجد فولتيه في حساس كرنك و حساس كم شفت ...هل داينمو احترق سلكات أو قنطره . ولا تعمل سيار نوع سياره دوج كرفان موديل 1993 حجم محرك 3300
Dude outstanding trouble shooting!
Hi there I have a question Hayes Mobile Auto Repair