oil pressure gauge - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 08-31-2005, 06:31 PM   #1
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is it normal for the oil pressure gauge to raise when accelerating and lower when deccelerating? i thought that it was supposed to stay at a constant pressure, but i could be wrong. hopefully this is normal and there is nothing wrong with the car.

its a 1997 SSE
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Old 08-31-2005, 06:37 PM   #2
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yes.. after the engine has warmed up.. but it usually won't drop till near dead stop.. or stopped..
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Old 08-31-2005, 08:32 PM   #3
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oil pump output low at low rpm (idle) & high at higher rpm. It'* a function of engine rpm. Also as engine warms up oil pressure will decrease slightly.
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Old 08-31-2005, 09:45 PM   #4
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The buick engine is a strange beast... But the oil pressure will vary for us, sometimes as much as 30psi in regular driving... could be 25-30psi at idle and 60 psi at roadspeed...

On a lot of the chevy 60* V6'* I have seen they usually stay pretty solid, they vary a little but not a lot... They are all a wee bit diffrent..

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Old 08-31-2005, 09:59 PM   #5
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Yes, that is normal
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Old 09-01-2005, 02:26 AM   #6
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thanks everybody, that'* good news
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