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2005 Pontiac Grand Prix oil pressure

Tiny
KBTOY
  • MEMBER
  • 2005 PONTIAC GRAND PRIX
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 74,000 MILES
I have a 2005 pontiac grad prix with a 3.8 a while ago the oil pressure gauge began sticking at 120 lbs then it began to fluctuate now it is at 0 where is the iol pressure switch located
Monday, November 10th, 2008 AT 8:56 AM

1 Reply

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
Switch is under the PS pump.

If you are getting any valve noise have the oil pressure tested with a mechanical gauge.
If not, then I would change the oil pressure switch.

It is also possible the gauge itself is bad.
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Monday, November 10th, 2008 AT 9:48 AM

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