Oil Pressure-DOHC

[dohc v6]

I know I can fins it but if someone on here knows it please share. I think it 19 but I cant remember. Also what should it be at 3500rpm. The reson I ask is becasue with my gauge in my car I only read like 15 psi, but I think the gauge is not grounded right or something.

[birdman]

well the stock pressure gauge on mine reads max (80) cold and anytime im above like 3k and with the car at full temp idle it never reads below 1/4 (20). but that is the stock gauge so i dont know how accurate it is.

[Schurkey]

I know I can fins it but if someone on here knows it please share. I think it 19 but I cant remember. Also what should it be at 3500rpm. The reson I ask is becasue with my gauge in my car I only read like 15 psi, but I think the gauge is not grounded right or something.

Oil pressure sending unit problems are a common problem on the V-8 engines; could easily be the same sending unit on those guys, too. I've had to replace the sending unit twice on my work truck. The gauge gradually reads lower and lower; you'd think the engine is wiped. Replacing the sending unit "adds" 30 psi of oil pressure.

 

Corroded wiring can have the same effect; I would not suspect a grounding issue at the sending unit--if the sending unit is screwed in properly, it won't lose it's ground.

 

GM dropped the oil gauge starting on '93 Luminas because the gauge fluctuated and people thought there was a problem. There was a service bulletin covering that issue. The oil gauge was replaced with a voltmeter which was probably a good thing--the alternator is more likely to give problems than the engine.

[Andrew]

chiltons says 15psi @ 1100 rpms.