1995 Pontiac Bonneville Oil Pressure

1995 PONTIAC BONNEVILLE
160,000 MILES • 6 CYL • 2WD • AUTOMATIC
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RDADAMS
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I have a 95 Bonneville that has erratic oil pressure. It fluctuates, from 35 -50 psi while driving down the road at an even RPM and drops into the red at idle (sometimes) when it's warmed up. Sometimes it will idle at 15 to 20 psi, but more often than not it runs from 0 to just under 10 psi. I changed the PCV valve and am considering changing the oil pump, but wanted to see if anyone out there knew what might cause this?
Jun 14, 2008 at 5:24 PM
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MMPRINCE4000
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Check the oil pressure with a mechanical gauge first to verify you have low oil pressure. It could be a bad gauge or sender.
Jun 15, 2008 at 6:32 AM
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PHILOSOPHICALLY2815
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i had the same problem but then they changed my fuel pump, filter, strainer, sending unit and changed oil and is perfect now
Jun 19, 2008 at 11:40 AM
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SPAZZTIC_KILLER
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i was wondering if you found out what it was? I thought it might be the Oil Sensor or the Oil Pump?
Nov 5, 2008 at 11:38 AM
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