1995 Pontiac Grand Prix 3.1 won't start

Asked by sschevysjs Feb 19, 2016 at 08:31 PM about the 1995 Pontiac Grand Prix 4 Dr SE Sedan

Question type: Maintenance & Repair

I have the same issue. I just got the car and it was sitting for about 2 years. I found several things wrong with it. I replaced the fuel pump, fuel pump relay, factory inline fuel filter, all coil packs and module, camshaft position sensor, and got a new battery. I am stumped! I went to Harbor Frieght and bought a fuel pressure test kit but the adapter didn't fit the schrader valve on the fuel rail. (I am looking for an adapter now). In the meantime, I pulled off one side of the fuel filter and turned the ignition. There is a lot of fuel coming out. I connected everything back up. I have no clue what else to do? Any ideas anybody. I have to wait for the  fuel adapter to come in. I wanted to see if anybody has had this in depth issue?

4 Answers
220,825

Rowefast answered 8 years ago

So do you have spark? And yes it is a good idea to check the fuel pressure, doing a bleed down test to see if there are any leaks. Should not bleed down more than 5 lbs in 3 minutes from highest pressure. So what about the crank shaft positioning sensor?

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18,235

munron answered 8 years ago

And of course you checked for trouble codes before doing all this, right?

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Aaronmalott42 answered 4 years ago

I just got mine in Connecticut and drove all the way to the Florida-Alabama line then it started just puttering the next day. It's a 95 with 60k miles which is unheard of. I did the plugs and boots, tested the battery and it's at the point where it should start, 13 amps. I dont freaking know, its been well kept. If anyone has advice it'd be much appreciated

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18,235

munron answered 4 years ago

Did you scan it for trouble codes? That should always be the first thing you do. Also check the fuel pressure. It sounds a bit like what my 94 cutlass did this spring. Turned out to be a weak fuel pump and some bad electrical connections back at the fuel tank. Yours is a low miler so its likely nothing too serious, but its also a 14 year old car.

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