Hello,

I have a 2001 Dodge Ram 3500 5.9 4x4 5spd. I started having a dead pedal and surging issue a few days ago. OBD reader shows low voltage to TPS. I used mikes diagram and made it to step 9 and I had continuity with the PCM and ECM orange and dark blue wire. It’s saying repair short to ground in the orange and blue wire. I checked all of the grounds to the ECM and PCM but I’m not sure where to check for the orange and blue grounding. I would appreciate any help that you guys can offer. I’m not a very good mechanic and no one in my area can even get

my truck in the shop until September 15…

Edited August 5, 20214 yr by Jeff Eady

Personally I would recommend getting a timbo apps, doing a WT mod and checking alternator for AC noise. More than likely it will resolve your issues and prevent others. 

I went thru pretty much the same thing a few years back. I replaced my battery cables and did  WT's ground mod. Already had a Timbo apps. All that cleared mine up. This trucks are very picky about their DC power supply. And they dont play nice with alot of AC noise.

Thanks guys for the response. Can you advise where I can find information on how to do these repairs? I’m not sure what the WT or how to check the alternator for AC noise. Thanks

 

WT ground wire mod is quick about an hour job to split the loom open and mkae the new connections. You just need the crimps for the wire and then a 150A circuit breaker or fuse for the alternator charge lead.  I've done three trucks now, my 2002 Beast has this mod too.

Edited August 6, 20214 yr by Mopar1973Man

Thanks for all of the help guys! Truck stopped having the issue for 2 days and started again this morning but not as bad. Such a weird truck….