Dodge Cummins Diesel Forum - View Single Post - Electrical gremlin
View Single Post
post #1 of (permalink) Old 05-10-2019, 06:49 PM Thread Starter
Diesel Head
Rx7man's Avatar
Join Date: Nov 2009
Location: Lillooet BC
Posts: 1,304
Thanks: 33
Thanked 94 Times in 82 Posts
Electrical gremlin

So recently I installed LED dash lights, and since they turn on instantly, I noticed my check engine light flicker... everything seemed to work fine for a long time so I never bothered with it

Recently, it's got some charging and electrical issues... doesn't charge, voltage jumps all over the place (never overcharge, just under), CEL comes on when it's not charging, oil pressure is much higher than normal (3/4 gauge, always used to be 1/2).. the strangest thing is it's only when the truck is moving, so it's dang near impossible to troubleshoot, I've wiggled all sorts of wires, put a jumper cable from the block to the battery (-) etc trying to find a grounding issue.. hasn't helped any.. If only I could make it fail while not moving I'd have a chance.

93 XCLB auto diesel truck

Any ideas?

'94 SC 4x4 Dually flatdeck, ~500hp, 67mm HE351VE
'93 XCLB Auto 4x4, '92 XCLB Auto 4x4 (Dads)
Rx7man is offline  
For the best viewing experience please update your browser to Google Chrome