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Pontiac Bonneville 2003 oil pressure reads 120

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  • Pontiac Master
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Have this checked with a mechanical gauge, also check that the wies going to the oil sending unit to make sure the're not shorted or grounded

Posted on Jul 25, 2009

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Posted on Jan 02, 2017

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SOURCE: the oil pressure gauge reads 120 psi when the

The oil sending unit is on the oil filter adapter above the oil filter.You will need a special socket for the unit.Good luck.

Posted on Nov 23, 2009

honeymokey
  • 3113 Answers

SOURCE: Pontiac Bonneville 2003 oil pressure 120/// and maf sensor code

Replace oil pressure sensor. What is the code?

Posted on Aug 12, 2009

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1 Answer

Oil presure reads 120


Bad sending unit or stuck pressure valve in the oil pump.

Mar 04, 2010 | 2002 Pontiac Bonneville

1 Answer

2003 pontiac bonneville. I discovered my oil


ok, if you havent added any oil to it, the only thing I can think of is you blew a head gasket, and you have radiator fluid mixed with your oil, hence the high oil pressure. Pull your dip stick and check your oil that way, to ensure proper oil levels and to check if you do or do not have coolant in the oil, another way to check is to see if you have oil in your coolant, once the seal on the gasket is broken oil and coolant dont have anything preventing them from mixing.

Dec 27, 2009 | 2003 Pontiac Bonneville

1 Answer

Oil Pressure Guage


Oil pressure is read by the sending unit, not created by it. If you replaced the sender and do not see a minimum of 20psi there is something wrong inside the engine.Some people will tell you that 5psi is "safe". In reality, in an otherwise perfect engine it may be but in real world application, the 20psi number is the lowest I'd ever accept in any engine.(at idle) Running pressure is influenced by temperature and oil grade, but this should not vary dramatically.
It is best to attach a mechanical oil pressure gauge to the engine and in that way, you can read the exact pressure. If the mechanical gauge reads the same or very close to what you see on the dash, then the reading is correct and if low you will need further diagnosis to determine why.

Oct 20, 2009 | 2001 Pontiac Bonneville

1 Answer

What should a 2002 Pontiac Bonneville oil pressure gage read at


at what? depending on engine temp and rpm, normal oil psi should read 30-40 psi at idle and at cruising speed of 1500 to 2000 rpm should read 60-70 psi. most bonnevilles from 1992 to the last year run of 2005 have the 3.8 liter V6 which was updated over the years.

Oct 13, 2009 | 2002 Pontiac Bonneville

2 Answers

Car stalls code for mafsensor oil pressure at 120


pull the cat off and see if it runs ok if it does then replace it as it will cause the maf senser to read bad.

Aug 08, 2009 | 2000 Pontiac Bonneville

1 Answer

My 01 bonneville oil pressure gauge is showing 120 and my gas gauge is all over the place


HI, the oil pressure sending unit may be malfunctioning at this point. this will cause erratic readings. if your oil level is proper and there are no apparent oil leaks, you will need to replace the oil pressure sending unit. this will fix the erratic oil pressure readings.

Concerning the gas gauge. this device also has a sending unit that sends the correct fuel level reading to the gas gauge via wire transfer. this sending unit is located and attached to the fuel pump assembly inside the gas tank. replacing this device will fix this issue as well.

Please rate and god bless:)

Apr 28, 2009 | 2001 Pontiac Bonneville

2 Answers

High oil pressure reading


Oil sending unit bad. Replace.

Mar 01, 2009 | 1989 Pontiac Bonneville

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