Oil gauge at max then drops then stays at max?

Asked by Dustin Feb 13, 2018 at 06:11 PM about the 1999 Pontiac Bonneville 4 Dr SE Sedan

Question type: Maintenance & Repair

I changed my oil on 99 bonneville , and when I start
my car my oil gauge jumps to max  then jumps  
back down and then stays at max. I searched the
www and one said I have an reset in glovebox,
nope,  next one said to turn car over and push acc
pedal 5-10 times for 10 secs, nope. What gives?

4 Answers
40,005

beatupchevy answered 6 years ago

there's no leaks ?, right filter and everything ? the best thing you can do is hook up an oil pressure gauge to get an actual l reading , if you din;t have oil pressure you'd know it . the gauge may be bad or something else may have gone bad by pure coincidence

1 people found this helpful.
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Dustin answered 6 years ago

No leaks, right filter. I had my car serviced at a shop and they " supposedly" changed filter and oil sender

Mark helpful
120

Pippino15 answered 5 years ago

Normal oil pressure at idle in drive is about 30 to 35 warm. Cold about 40psi. acceleration or revving motor is above 45 to 50 or a little higher. No big deal. Drive it and enjoy.

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