Motor is FREAKIN' out! Truck dead. Please help!

Bumpety bump....HHHHEEELLPPPP!!!! :D

Dodge says for $85.00 they will tell me what's wrong with it. I guess it may be worth it but they can't look at it 'til next week. We have 50K poeple in this town and dodge only has one diesel tech....retards.
 
I printed off the ground distribution pages of the manual but I ain't figured out how to tell where the heck they are from the diagram. I agree, it seems a ground is missing since all sensor voltages are high, but the "sensor ground" at the ECM plug is ok. I'll look more. Thanks. Man, these electronic controlled jobbies suck!!! :D
 
Jory has an 01 HO with an Edge hot Juice, gauges, a single stack out the back and a few other doodads for good measure. In this case his power mods other than the the juice are most likely a non issue.
 
daysel said:
Filling out your sig would help us know more about your truck.
Click to expand...

Sorry dude.

2002 Dodge, H.O., 3500, 4x4, 6-speed, SB OFE Clutch, Edge Juice/Att, II PS62/14, Jammer IV's, AFE II w/ Pre-filter, Vulcan Big Line/Relo Kit, 4" DP, 5" Exhaust w/ Stack

None of my mods would help in this matter, at least I don't think so.

I just thought of something else. I normally don't check my codes on any type of routine. I wonder if some of these are old and never got cleared after messing with something else. I did just put two new batteries in a month or so ago. And the "connect the battery cables together" didn't work to clear ECM codes. It cleared the P1693 from the PCM but not any of the others. I borrowed a OBDII reader from a guy at work and I'm going to go home and clear all codes and fire it up agian and see if they ALL return. My engine light never comes on so this may be a stretch but right now a stretch gives me some sense of hope!! It confused me to have a "charging system voltage low" when all other signals are reading "too high". Maybe that one is old? :bang Dam computers. They are from the devil.
 
Have you tried unplugging your edge juice?That is plugged into the chrysler data bus .It is possible since it does modify signals to your computer that it has gone haywire I have had several of these things cause some weird issues in the past.(not say anything bad about edge) I love there products but I have had my but handed to me before trying chase electrical gremlins only to find out I had installed the problem in the form of a power module.Even though it appears to be reading correctly on the monitor it may be sending junk signals to the ecm and pcm.Other than that I would have to agree with the others in thinking your pcm has taken a mysterious steaming pile of fail.The ecm and pcm work together on the CCD bus and 2 wire system to transfer digital data back and forth.For instance the pcm takes care of your auto trans duties as well as dash functions and charging and A/c system ect.The pcm will tell the ecm that there will be an extra load on the motor due to the A/c compressor kicking on ect.If you could get your hands on a good scan tool instead of just a code reader you could actually look at the data and see what the desired and actual readings are.Hope this helps some good luck.
 
Jory we had a truck come into the shop last summer with the same problems. Really bad idle, jumping all over the place. We tried everything we could think of. Couldn't figure it out, knew it was a electrical problem, we took it to Dodge. The ended up cutting open the main wiring harness on the engine and putting a new ECM in it to fix the problem. Truck hasn't had a problem since. Good luck.
 
One DTC I posted was wrong.

The P0563 "Charging System Voltage Too Low" is actually "Charging System Voltage Too HIGH"

Misprint in the sticky thread http://www.competitiondiesel.com/forums/showthread.php?t=18610
Someone can fix it that has access.

Maybe I need to do more extensive voltage testing from the alternator than just putting the DMM on the battery post. It read 14.2V which is normal to my truck. If it charges too high it would put everything too high which seems to be the case. I wonder where the DTC code thrower thing takes it reading? :bang
 
I did unplug the juice box and start it up. No change. I didn't however take the wiring harness out of the loop.
 
Got home and put an actual DTC reader on it. New code that didn't flash on the odometer trick.

P0606
PCM Processor Fault

I'll go out and check grounds and powers to the PCM and if they are good, looks like a new PCM for ol' silver. Good call Billy. We'll see.... :D

I guess I have to buy it from Dodge or do they sell after market ones for half the price? Would you recommend getting them anywhere else but Dodge?
 
New info!!!!

Ok. With the PCM fualt and the charge voltage high/low whatever I decided to put the DMM on the two wires shown in the attachement. It is the charging circuit from the alternator (or generator as the old school show in the diagram).

Voltage while running varies a volt or two.
DC +5.5 to +6.5 volts
AC 7.0 to 8.0

Does anyone know what this output should be? It appears to be AC since it is not rectified but should it be 12 VAC or what? Does anyone know? Maybe I have a bad alternator. That would be SWEET!!! Well, as sweet as it can be at this point.
 

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??? that is way to complecated for me, they tried to teach me that in class and i though it looked closer to a damn road map
 
4x4dually said:
Ok. With the PCM fualt and the charge voltage high/low whatever I decided to put the DMM on the two wires shown in the attachement. It is the charging circuit from the alternator (or generator as the old school show in the diagram).

Voltage while running varies a volt or two.
DC +5.5 to +6.5 volts
AC 7.0 to 8.0

Does anyone know what this output should be? It appears to be AC since it is not rectified but should it be 12 VAC or what? Does anyone know? Maybe I have a bad alternator. That would be SWEET!!! Well, as sweet as it can be at this point.
Click to expand...

Honestly Jory, I've tested LOTS of chrysler truck alternators when the customers are convinced they are the problem in their truck....9 times out of ten....the alternator passes the test....and the problem lies in the PCM. As I recall, the alternator gets its signal to charge through the PCM.
 
I could be wrong bud.....You could always take it off and have someone test it.
 
Well, went to Dodge this morning to talk shop. New PCM is $600 (f'in bastages). I scheduled them for Mon morning to put the DRB on it to make sure it was the PCM. Then I brought it to work with me, the PCM, and being the genius I am I took the cover off to see if there was any burned chips or devices in it so I could tell it was bad by observation. The freakin' circuit board isn't a board, it is a flex-circuit glued to the inside of the cover and naturally I got my screw driver into it while prying the cover off. Cheap, retarded people (I already used bastage in this post). So, looks like I'll order a PCM anyway and put it in then have it programmed on Mon.

Anyone know where I can buy a cheaper PCM? Anyone know anyone that can pre-program it so I don't have to go to dodge??? Dang electronics.
 
It's gotta be your PCM! Since all the grounds check out good that is about the only other thing it could probably be......or I hope so!:hehe:


EDIT: And like Scott said....the alternators rarely go out on these suckers unless you have a kajillion miles on them!
 
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It really took a dump when I shoved my screwdriver through the flex-circuit board!!! What a D.A. Cheapest I've found is $395.00 free shipping and free programming. I'd have it Tues or Wed from freaking Florida! Why can't ANYTHING be in Oklahoma???? Maybe we don't have enough immigrants to do all the work. :D

http://www.dodgeecu.com/?gclid=CJ7fgOSUj5ECFRApIgodcjfcRw

Rip at source is also looking for me. Hopefully he can beat their price and lead time....if he don't get them from the same folks and mark them up!!! :D

JWB
 
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