bluebird71

iTrader: (53)

On my way home tonight, I noticed that my OP gauge was very high. It was up to about 80. When I stopped at a light, it started climbing and went all the way to full peg and stopped there. I have seen OP gauges drop before, but never peg out like this. This is my DD so obviously I'm pretty concerned. What does this mean?

Here is a pic I took of the gauge:

Ferocity02

iTrader: (59)

Could be a bad gauge or sender.

DR132

what he said, i'd lean towards the pressure sender first.

bluebird71

iTrader: (53)

God, I hope that's all it is. Is there anything else that could cause the oil pressure to go up that high?

xdmikey

And couple of good finger flicks straightened it out!

bluebird71

iTrader: (53)

^Ha, really, wow! Good ol GM electrical system. Wouldn't it throw a code if it had a bad OP sending unit or not necessarily?

sand man

it should tell you if the pressure goes low but not high.

check the sending unit first , its behind the intake manifold , you have to remove the IM to have accses to the sensor .

if the seesnor is ok , check the gauge, if its also OK.

I think it would be the pressure control spring in the oil pump , if so, change the oil pump with a new one for the L99 Camaro

sand man

lol at me telling you to remove the intake manifold to change the sesnor

just noticed the sig , thought you were a newbe

bluebird71

iTrader: (53)

I think it's just the gauge cause when I turn the key to the "on" position without actually starting it, if the sending unit were bad, the needle is supposed to fluctuate back and forth. Another reason I think it's the gauge itself is that it pegged all the way out, past 80 psi. If it were something with the pump or sending unit, it wouldn't go that high. The final reason that I think it's the gauge is because it now just sticks in certain spots for long periods and never moves. I have never actually had to repair gauges themselves before, and while I'm certainly not a GM newbie, this is my first truck since my '95 2 door Tahoe years ago and that was totally different. I'm having to learn all these new little electrical quirks that are similar, yet different than all the f-bodies I've had.

Suburbazine

That's a bad stepper motor without a doubt. A faulty sensor can't make it read that high.