Oil Pressure fluctuate's - Page 4 - 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 10-02-2009, 12:17 PM   #31
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There are lots of people on the forum that have experienced the same thing and figured it out. Do a search on "Oil Pressure Gage" and see what comes up. I see solutions ranging from cleaning the contact for the wire to the sensor to buying an OEM sensor instead of after market. Read through some of the threads to see what others have experienced and done to correct it.

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Old 10-02-2009, 09:04 PM   #32
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O.K. I will,, but first I unhooked the cheap oil press. gauge and hooked up one from my '68 Firebird which is top of the line took car for drive and oil press gauge did same.
So it looks like the gauge is at fault or something gauge related.
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Old 12-28-2012, 12:46 AM   #33
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I have the same issue and have done both uim and lim I believe it to be the gauge specially when the needle flicks back and forth so fast it can't be accurate also really don't want to do main bearings
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