Question about 2001 Pontiac Grand Prix

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The 3.8 grand prix gt I have is missing and there is a distinct fuel odor coming through the vents when the car is first started. What may be the cause and/or solution to this issue?

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  • Pontiac Master
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There may be a leak in the fuel line. Investigate asap, because this can cause a fire hazard.

Posted on Jul 11, 2010

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Posted on Jan 02, 2017

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1 Answer

F/spd cont fuse missing and loosing power when accelerate uphill


vent valve is stuck closed causes fuel not to fill correctly fuel pump module sucks air on grades to steep for pick up to keep fuel flow steady

Apr 01, 2014 | 1998 Pontiac Grand Prix

3 Answers

What is code PO496 and PO455 for a 2007 Pontiac Grand Prix mean


P0496 is not alisted code.
P0455 - Evaporative Emission Control System Leak Detected Gross Leak (fuel vapors)
Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Possible a noticeable fuel odor caused by the release of fuel vapors Possible causes - Missing or loose fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- EVAP canister or fuel tank leaks
- EVAP system hose leaking
- Fuel tank leaking

Jan 24, 2012 | 2007 Pontiac Grand Prix GXP Sedan

1 Answer

My 04 Grand prix gt will start then after sitting a while will not start i have to push the gas for it to stay started i just got this car and it only has 56k miles on it.


A fuel pressure test should be performed as I suspect the fuel pressure regulator is leaking fuel into the vacuum line causing the engine to flood on restart.
A drop in fuel pressure would confirm this.

Mar 25, 2010 | 2004 Pontiac Grand Prix

1 Answer

What makes a car stop while driving but starts


Fuel pressure loss is the usual cause. Check your fuel pressure. This can be caused by a plugged fuel filter or a faulty fuel pump. The next thing to check is your fuel pressure regulator

Jan 19, 2010 | 1997 Pontiac Grand Prix

2 Answers

I have a 94 grand prix se 3.1. When i first start it ir smells like gas. It goes away and then comes back at red lights..... I cant find any leaks... Any ideas?


It may be the fuel pressure regulator located on the fuel rail on top of the motor it leaches out a very small amount of gas when they start to go inspect it if it looks even a little bit wet replace it, if this is not wet then the gas cap may not be venting properly replace it.

Nov 03, 2009 | 1991 Pontiac Grand Prix

1 Answer

2002 Pontiag Grand Prix GT 3.8 Runing rough and stalling at stops


sound like vacuum leak or fuel pump problems.scan it to see if egr valve sticking open.

May 13, 2009 | 2002 Pontiac Grand Prix

1 Answer

Trouble getting car started.


have the fuel pressure tested, suspect the fuel pump is on the way out.

Mar 02, 2009 | 1998 Pontiac Grand Prix

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