Oil Pressure Quiz - Page 2 - 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 08-18-2003, 09:13 PM   #11
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Did you put the right oil pressure sender unit in the car? Remember the Bonneville has two different types - one for the idiot light and one for the gauge, depending on what your car has. Also could be the wrong year/car unit.
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Old 08-18-2003, 09:22 PM   #12
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Nope, it'* the proper "gauge" type sending unit.
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Old 08-18-2003, 09:29 PM   #13
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Ok, please don't post the answer yet. Let me get this straight... the actual oil pressure was low, and it would happen while the car was not moving?
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Old 08-18-2003, 09:33 PM   #14
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Oil pressure gauge reads 50psi at idle and cruising. Quick acceleration, however, drops the gauge immediately into The Red Zone. Bad. Engine speed goes up, oil pressure goes down; engine speed goes down, oil pressure goes UP.

When the car was not moving, at idle, oil pressure was outstanding.
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Old 08-18-2003, 09:35 PM   #15
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What I am trying to find out is if it only drops on acceleration or also at high rpm while standing still.
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Old 08-18-2003, 09:36 PM   #16
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Nope, only on acceleration. When I sat parked in the garage, I could redline it with no oil pressure issues.
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Old 08-18-2003, 09:37 PM   #17
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Oh that'* different. Loose or broken baffle in the oil pan?
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Old 08-18-2003, 10:32 PM   #18
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Nope. The only "baffle" in these cars is an integral part of the injection-molded pan gasket.
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Old 08-18-2003, 10:44 PM   #19
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I give up.
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Old 08-18-2003, 10:51 PM   #20
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oil filter was clogged?
your car was depressed?
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