oil pressure guage

[02cetransam]

When I turn my car off, my pressure guage stays at the direct middle or occasionaly it will slowly go all the way down. Also, when I start my car the pressure is high like inbetween the last last 2 ticks. When the car worms up, the pressure goes back to normal. Is this something I should be worried about? Do you think my guage is scewed? Please let me know. Thanks.

[TROYWS6X]

When the car is cold, the oil is more viscous and will record a higher pressure on the gauge. After it warms up, it "thins out" and the pressure will return to normal.

[02cetransam]

Thanks...so a change that drastic would be caused just from the viscosity? The pressure also return to normal when I depress the clutch (motor under no load). Should that big of a change be seen? Is it ok to have high oil pressure?

[LS1_TA_2002]

When I turn my car off, my pressure guage stays at the direct middle or occasionaly it will slowly go all the way down. Is this something I should be worried about?

That's strange my gauge falls flat as soon as I turn the engine off. No pressure no reading, right?

Also, when I start my car the pressure is high like inbetween the last last 2 ticks. When the car worms up, the pressure goes back to normal.

Yes this is normal and on mine when I'm accelerating my gauge moves up. More RPM's=oil pump spinning faster=higher pressure.

Do you think my guage is scewed? Please let me know. Thanks.

It sounds like a lazy/slow sensor or maybe something is holding oil pressure like plugged oil passages. My.02

[2001NBMZ28]

We talking about the stock gauge? Oil pressure gauge on mine has always stayed at about a 1/4" past 40 after car is turned off - have friends whose cars do the same thing?????

[02cetransam]

yes, the guage is stock

[2001NBMZ28]

Staying at the last setting turning the key off is normal - "ocasionally it will slowly go all the way down" isn't. Unless you do something, like turning the key to RUN and not start the car, etc.

[mpunklil]

my gauge flutters around 40...im thinkin just a bad connection somewhere...oh well, i dont care, it runs. lol

[NextBigThing]

My '02 SS stays at 40 when the car is turned off but when I put the ignition to the on position then back to off position it falls back with the rest of the gauges...but when I put it back to the on position it stays flat and all the rest go into their positions...not sure maybe a bad connection or ground, not sure on how the gauges actually function in that respect. Anyone have any ideas? Gauge functions properly when car is running and driving.

[joejenkinsglass]

well from all I have read the guages in the 99-02's are reference only

they are electronic guages and any fluctuation could be interference from the stereo or alternator or a number of other things

I wouldn't worry about it