Question about Pontiac Grand Prix

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2005 Grand Prix suddenly has no acceleration power/torque...

-To preface the issue; there was an existing issue with the exhaust, somewhere between the back seat and drivers seat. Yesterday, on my way home from the bank, my car seemed to "sputter" when I would press on the gas pedal. There was already a lack of power due to the exhaust leak, however this time seemed much more severe. As I approached the Highway entrance ramp, I released my foot from the gas pedal. When I pressed back down to accelerate, the engine rev'ed as if it was in neutral. Simultaneously, the heater blower was shutting off and turning back on. I pulled over and shut the car off. 30 seconds later it started right back up and went back in gear. There was still a tremendous lack of power, however I was able to make it home. Any idea what the issues are?

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1 Answer

Dead Battery or Bad Alternator

Posted on Jan 24, 2013

  • matwizzard05
    matwizzard05 Jan 25, 2013

    How should I test for which one is bad? Now that you mention it, my headlights dim when the fan kicks in.



6 Suggested Answers

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Posted on Jan 02, 2017

  • 141 Answers

SOURCE: Acceleration issue

Just a suggestion, but the EGR valve can cause that problem. If that checks ok, then I would have the catalytic converter checked for clogging. Both ideas would cause that specific problem. I sincerely hope that this can solve the problem, or at least head you in the right direction. Best wishes.

Posted on Jan 17, 2009

  • 79077 Answers

SOURCE: 2005 Dodge grand caravan 3.8 liters. Saturday

U may have got some bad gas, also maybe vapor lock.

Posted on Apr 27, 2009

  • 1985 Answers

SOURCE: 1997 s10 2 wheel drive truck. 4.3L v6 makes a loud

Your noise sounds like it is power train related,If you have eliminated the engine,Since it doesn't make the noise while moving and in neutral.
It sounds like a universal joint in the drive shaft.Do you notice a vibration
along with the noise?

Posted on Nov 17, 2009

  • 65 Answers

SOURCE: my 2008 jeep grand cherokee sputters when i

try cleaning the mass air flow sensor located in the intake tube by the air filter

Posted on Mar 02, 2010

SOURCE: 2004 Lincoln LS won't accelerate at 60mph, dies

Why would a dealer not be able to find the issue?
Start by checking codes.
If you have to, drive with a scanner,not a code reader on it,to capture data.
If it only has issues when turning the steering wheel and is speed related with the turning, you have a place to start.
I assume the dealer did all that.
I have a 2004 V8,so let me know, what help you need.

Posted on Mar 19, 2010

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Changing parts doesn't answer the question
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In my 2005 grand prix in the front end when i accelerate there is a clicking noise when i first accelerate. Any ideas of what could be causeing this?

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Check engine light stays and blinks on a 2005 pontiac grand prix gtp and it also has vibrations as u drive

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My 2004 grand prix hesitates when I accelerate, but only when the engine is warm. If it sits for 15-20 min and I drive it again, it hesitates greatly when I give it gas. When it sits longer and the engine...

If the oxygen sensors have not been recently replaced, a new one should be installed. Also, perform a fuel pump pressure test. Clean fuel injection system including throttle bore, idle speed control motor and passages. If the problem still exists, scan the computer for trouble codes.
also check if Mass Air Flow Senor is operating below were it should. This condition gives you low power, replace to recheck system.

Jul 09, 2009 | 2004 Pontiac Grand Prix

1 Answer

2005 Grand Prix GTP tranny filter

what does it have on it now? Always the same, always the safest. Law of mechanics

May 28, 2009 | 2005 Pontiac Grand Prix

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