Bakir Bakir

I’ve already posted one forum but still haven’t gotten any exact answers. Basically my 1998 camaro z28 with 86k miles doesn’t climb past 45 psi at alll! It will idle at warm temp around 25-30 and at 2k around 35 psi. 3k revs push’s it to 40ish psi but everything after doesn’t really bring up the pressure. Sometimes when I give it slight gas, the pressure will go slightly down and slightly back up. I have sum **** quality videos to show a reference. Any ideas please?? I’ve already added half a quart of extra oil, it raised the overall revs a little, but it still doesn’t climb past 45

dixiebandit69

Typically, when you lose oil pressure when you rev the engine, the oil pump intake is blocked in some way.

Have you checked the pressure with a mechanical gauge? Because I've never fully trusted electrical gauges.

Bakir Bakir

service light came on, I guess i need a new oil sensor, hoping that is the reason!!

01CamaroSSTx

iTrader: (3)

From the clips I didn't see anything that looked critical and when the oil pressure gets critically low a light will come on. It could also do that when you near stall too. There could be any number of things that can cause lowered oil pressure..My advice would be to start with the cheapest and easiest and go from there. I have 05 Tahoe that is knocking on the door right now. Whoever had it before me must have put some engine restore in it or something and all that's done is gum up the engine. I dropped the pan and it had cooked on sludge with barely any area for the oil to make its way into the pickup tube. In fact the pickup tube also had sludge clogging it up and I've remedied those but I still can't go more than 3,000 miles between oil changes before the oil filter gets gummed up which causes lower than normal oil pressure.

blsnelling

iTrader: (4)

I would be concerned about the bypass valve in the oil pump.

Enigma540

As said, start by putting a mechanical gauge on it. In that second video, looks like the gauge might be jumping around between 35 and 40 psi just from hitting bumps. Could be the gauge or wiring or contacts.