Question about 1997 Pontiac Grand Prix

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Haunted gas gauge? 1997 pontiac grand prix se with 3.8 L engine. gas gauge is haunted? sometimes shows full when I know theres under 15 L in the tank, it will show any amount of gas in the tank but rarely the correct amount any idea?

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The fuel guage sender on this model is faulty. Some were recalled when new. You need to replace it with a new one. It's attached to the fuel pump just outside the tank. It's a good idea to replace the pump while you are at it since you have to drop the tank to do this. The sender is part of a wire harness that comes with the OEM pump assembly. I strongly urge you to use the AC Delco OEM part for this repair. There are much cheaper after market pumps out there but they come with many complaints of Hard Starting and poor performance.

Posted on Jul 16, 2010

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Bad ground from your fuel gauge sender. Find a good ground on your sender and I would bet it will work properly...

Posted on Sep 12, 2009

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1 Answer

Do I have to remove the gas tank to inspect/change the fuel pump on a 1991 pontiac grand prix?


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Where is the fuel pump cut off switch located on a pontiac grand prix se 1997?


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Mar 29, 2010 | 1997 Pontiac Grand Prix

1 Answer

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1997 Pontiac Grand Prixn feul gauge is backwards


Hello - you will need to replace your sending unit - which is attached to the fuel pump in the gas tank.



Thanks for using FixYa!

Oct 28, 2009 | 1997 Pontiac Grand Prix

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Need to know the compression for a 3.1 Liter V6 engine (1996 Grand Prix)


It will vary too much between gauges to give you a definitive answer, probably between 150 and 175. The key thing you should be looking for is consistency. Crank the engine for the same amount of time for each cylinder, about 3 seconds. The readings should all be very close to each other, within about 15%.

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Engine stalling out while driving


It could be that your fuel injection system is failing, try putting some fuel injection cleaner (gas additive) into your gas tank, you should notice a difference after the first full tank. If not it will be time to get your system checked-out at a garage.

May 18, 2009 | 1997 Pontiac Grand Prix

1 Answer

Once the fuel gage on my 1997 Grand Prix get below 1/2 a tank, the gauge will raise to show nearly 3/4 of a tank of gas. Is this a problem with electronics or the sending unit???


Either the sending unit on the tank, or there is a short in the wire going to it.. check it for a worn spot in the wire from the fuel tank that is usually the problem .

May 01, 2009 | 1997 Pontiac Grand Prix

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