Flickering oil PSI gauge?

**silverWS6** · 08-04-2012, 02:06 PM

So my oil PSI gauge flickers sometimes, its nothing extreme like 20-60psi but when I'm sitting at a light then it'll slightly flicker the needle around 40psi (normal idle psi) under acceleration its fine and holds normal pressure (about 60psi). Car has 79k miles and I use Pennzoil platinum 5-30... anybody else seen this? I know these gauges suck

**Knight** · 08-04-2012, 03:36 PM

Could be the OPSU having an issue, a slightly loose wire connection, or just the guage itself. I wouldn't worry about it too much. You could go with an aftermarket guage setup just to be safe.

**FinZ28** · 08-04-2012, 04:32 PM

Mine does the same thing. Typically it only does it once the car has been driven for awhile, and it only does it with the car in gear. Not too worried about it since pressure seems fine otherwise.

**silverWS6** · 08-04-2012, 04:35 PM

Originally Posted by Knight

Could be the OPSU having an issue, a slightly loose wire connection, or just the guage itself. I wouldn't worry about it too much. You could go with an aftermarket guage setup just to be safe.

I'll probably end up doing this along with a water temp gauge since both suck on the 02's, is it difficult to wire one up?

**SuperSSguy** · 08-05-2012, 12:10 AM

Or this one....My oil gauge moves to the beat of my music

No shit! If i mute the stereo or shut it off..it stays on the correct pressure but when the musics playing it moves with the beat of the music!!The stereo is the factory monsoon - no aftermarkets-..now it has been replaced once under warranty(the stupid illumination lights went out,,,and so did this one eventually)..possible bad ground with stereo? If so why would this affect the oil guage?

**transamtom** · 08-05-2012, 03:39 AM

Mine flickered a bit and read a little low,put a new OPSU in when I did the LS6 intake and no more flicker and I have a good strong reading which is backed up by how the car runs.

**SuperSSguy** · 08-05-2012, 04:50 PM

Originally Posted by SuperSSguy

Or this one....My oil gauge moves to the beat of my music

No shit! If i mute the stereo or shut it off..it stays on the correct pressure but when the musics playing it moves with the beat of the music!!The stereo is the factory monsoon - no aftermarkets-..now it has been replaced once under warranty(the stupid illumination lights went out,,,and so did this one eventually)..possible bad ground with stereo? If so why would this affect the oil guage?

Anyone???

**SuperSSguy** · 08-07-2012, 12:04 AM

Originally Posted by SuperSSguy

Anyone???

disco inferno?

Help Mr.Wizard.....

**pajeff02** · 08-07-2012, 03:00 AM

OP - your oil pressure readings match mine. I would suspect the same as posted by Knight - just be damn careful poking around behind your intake. There is a great writeup on here by junkyarddog on plumbing in an aftermarket gauge. I know the temp gauge in anything other than a '98 model year car is a POS, but the oil pressure gauge from the factory seems to work well and I have seen few complaints on here.

**pajeff02** · 08-07-2012, 03:02 AM

Originally Posted by SuperSSguy

Or this one....My oil gauge moves to the beat of my music

No shit! If i mute the stereo or shut it off..it stays on the correct pressure but when the musics playing it moves with the beat of the music!!The stereo is the factory monsoon - no aftermarkets-..now it has been replaced once under warranty(the stupid illumination lights went out,,,and so did this one eventually)..possible bad ground with stereo? If so why would this affect the oil guage?

Sounds like a ground or connection issue to me. There is a ground on the back of the driver side head that is a PITA to get to -- has the secondary air been removed or any work done in that area? Any other accessories installed, such as an aftermarket alarm?

**SuperSSguy** · 08-07-2012, 07:36 PM

Originally Posted by pajeff02

Sounds like a ground or connection issue to me. There is a ground on the back of the driver side head that is a PITA to get to -- has the secondary air been removed or any work done in that area? Any other accessories installed, such as an aftermarket alarm?

Where? against the firewall? No to the secondary air at least I never touched it...It seems to have started after the 1st factory Monsoon stereo went out and second installed at GM dealership? But unfortunately i cant say that for sure No to any other accesories,No aftermarket alarm...The only work i had done was the LT`s,and when they did that they put in plugs and MSD wires----but it didnt happen til way after that so? kinda a stumper but not serious just annoying.huh ive got my OP gauges needle boppin to the beat all i need now is the fog and mirror ball

NOT!

**pajeff02** · 08-08-2012, 07:31 PM

Might not be a bad idea to pull the head unit yourself and look everything over. I have the books for the '02 and can pinpoint the ground for the system. The one on the back of the head just seems to be the one people have had issues with, usually after a secondary air delete as they don't realize the back bolt is also a ground.

**SuperSSguy** · 08-08-2012, 09:58 PM

Originally Posted by pajeff02

Might not be a bad idea to pull the head unit yourself and look everything over. I have the books for the '02 and can pinpoint the ground for the system. The one on the back of the head just seems to be the one people have had issues with, usually after a secondary air delete as they don't realize the back bolt is also a ground.

So theres a ground bolt actually into the head on the dr side?

**pajeff02** · 08-09-2012, 02:59 AM

Very back of the head. With a mirror you can see it from up top.

**2002ssslp** · 08-09-2012, 07:24 AM

Gauges on our cars suck !!!

**SuperSSguy** · 08-09-2012, 07:27 PM

Thanks!

**SuperSSguy** · 08-12-2012, 11:49 PM

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