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Where is the fuel pressure regulator located on a 1990 pontiac grand prix v6

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Located in the fuel rail under the plastic cover. It has a single vacuum line going to it

Posted on Apr 25, 2015


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My 1990 pontiac grand prix is getting to much gas and its dyeing

It can be faulty fuel regulator or ECM not controlling fuel pump.The fuel pressure regulator and ecm needs to be inspected.For more details,go through the help links.Click the link below:----ECM misfueling Engine?

How to relieve fuel pressure?
---------- Refueling problem?
---------- Vehicle consuming more fuel?
=-------------------- How to maximize fuel economy on your vehicle?

This will help.

Jun 05, 2012 | 1990 Pontiac Grand Prix

1 Answer

Where is fuel pressure regulator located in 2002 pontiac grand prix GT with the larger 3.8 V6? Tips or tricks for removal or installation welcome!

i fyou look at the fuel rail (fuel pipes that connect all the fuel injectors) you will see a small round piece with a vaccuum hose attached, thats the fuel pressure regulator. once you find it, you will see how it comes off.

Sep 21, 2011 | 2002 Pontiac Grand Prix

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Engine will run and idle but will die as soon as u push on the gas

This sounds like a fuel problem. Check the fuel pressure at schrader valve. On top of engine. It is either your fuel pump or fuel pressure regulator.

Aug 28, 2011 | 1990 Pontiac Grand Prix

1 Answer

Were is the fuel pressure regulator on my 2004 grand prix GTP

The regulator is located on the fuel rail, i think on this model it is on the right side toward the firewall.

Mar 02, 2011 | 2004 Pontiac Grand Prix

1 Answer

Oil pressure fuel cut off sensor

next to the oil filter in the front of the motor

Jul 07, 2009 | 1990 Pontiac Grand Prix

1 Answer

Where is the fuel pump reset button on 1990 pontiac grand prix

GM cars don't use a fuel pump reset switch, they use an oil pressure fuel cut off sensor, same thing different way of doing the job, it the engine stops with the key in the on position or u loose oil pressure the fuel flow stops..

Jul 07, 2009 | 1990 Pontiac Grand Prix

2 Answers

I have a 1990 pontiac grand prix LE 3.1 v6 and it starts but when the engine gets warm it starts to spudder and when you hit the gas it will shut off i replaced the fuel pump and the fuel filter and ideas

Possible blown head gasket. Check the oil to see if there is water in it. When it starts, does water or steam come out of the exhaust pipe? Those are 2 signs of a blown head gasket.

Jun 12, 2009 | 1990 Pontiac Grand Prix

1 Answer


the fuel pressure regulator should be on the feul rail near the should have a vacum line connected to it.

Apr 13, 2009 | 1994 Pontiac Grand Prix

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