Oil Pressure Issues on an 89
#11
WECSOGer, jr gearhead
Okay, this might sound odd, but I had a similar problem. Oil pressure would drop to nil, often when stopped at a light. Would pick back up when driving. Starter took a crap on me, changed that out, boom, oil pressure back in the normal at all times.
#12
Junior Member
Thread Starter
That is weird Cpt! Maybe I should get a new starter! I've noticed that there are several ground wires that are disconnected and I connect em as I find them but I'm guessing this truck has had wiring issues in the past. I thought maybe it was an electrical problem so I wired the new gauge directly to the battery but it shows the same. It drops to nil at a stop while in gear. The odd thing is that if it didn't have a gauge I'd never suspect a problem because it runs just fine and doesn't make any noise. I'm trying to do everything I can before I actually start pulling the engine. I can see it now... Pull the engine, spend a bunch of cash and time rebuilding it, put it back in and get the same reading because of some dumb wire hanging loose.
#14
Junior Member
Thread Starter
I'm starting to think that as well. I noticed that an obvious ground wire to the engine was disconnected so I just found a bolt and attached it there. Maybe it's not the best place for a ground so I'll look around and find something on the block and see if that helps at all.
#15
Senior Member
Just in case you didn't know, these trucks respond extremely well to improved grounds.
I upgraded all of the ground cables on my truck to 4 gauge and it made a huge difference with the electronics (lights, turn signals, etc.) from the upgraded body grounds and my idle was a tad bit smoother as well from the upgraded engine grounds.
I upgraded all of the ground cables on my truck to 4 gauge and it made a huge difference with the electronics (lights, turn signals, etc.) from the upgraded body grounds and my idle was a tad bit smoother as well from the upgraded engine grounds.
Last edited by qdeezie; 10-14-2014 at 02:55 PM.