1991 Pontiac Firebird Oil pressure problems


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1991 Pontiac Firebird Oil pressure problems

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Auto Repair Home>> Automotive Repair>> Car Troubleshooting

Wujman
User

Nov 17, 2016, 1:31 PM

Post #1 of 6 (1363 views)

1991 Pontiac Firebird Oil pressure problems	Sign In

I have a 1991 Pontiac Firebird with the 3.1 v6 engine. The oil pressure gauge reads fine when I start the car, but when I break it goes down to 0, and when I accelerate it goes back up just past red. Ive put it in park when the oil pressure reads 0 and watched the engine temps and the engine stays around 160 degrees so I am not sure if it is the oil pump or a faulty oil pressure switch. I am a little worried because this car has to make a 300 mile trip tomorrow and I don't want it to overheat during the trip. Any help would be appreciated.
-Wujman

Wujman
User

Nov 17, 2016, 1:33 PM

Post #2 of 6 (1360 views)

Re: 1991 Pontiac Firebird Oil pressure problems	Sign In

Also the I checked the oil and the previous owner filled the oil up way too much! Could that also be a reason that the oil pressure can't stay up?

Wrenchly
User

Nov 17, 2016, 1:35 PM

Post #3 of 6 (1360 views)

Re: 1991 Pontiac Firebird Oil pressure problems	Sign In

Oil pressure switch is a low-cost item and usually the first step
when facing a possible oil pressure situation.

Wujman
User

Nov 17, 2016, 1:38 PM

Post #4 of 6 (1358 views)

Re: 1991 Pontiac Firebird Oil pressure problems	Sign In

The switch would be located near the oil filter or on the oil pan somewhere right? I don't really have a means to jack the car up easily to just look at it.

Wrenchly
User

Nov 17, 2016, 1:47 PM

Post #5 of 6 (1353 views)

Re: 1991 Pontiac Firebird Oil pressure problems	Sign In

The oil pressure sending unit is near the oil filter.

Wujman
User

Nov 17, 2016, 1:58 PM

Post #6 of 6 (1351 views)

Re: 1991 Pontiac Firebird Oil pressure problems	Sign In

Alright, I will replace that and see if the oil pressure gauge reads correctly.

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