Hard acceleration

Asked by May 13, 2016 at 09:30 AM about the 2004 Pontiac Grand Prix GT1

Question type: Maintenance & Repair

I have a 2004 Grand Prix with about 150,000 miles on it!!
Just recently it became hard for me to accerlate! And
sometimes before taking off or when I come to a stop n
press the accelerate it hesitate before going! Would really
like to know any possible problems and a possible
solution

2 Answers

170

Is there a check engine light on? Sounds like you may just need a tune up or at least a new fuel filter. The GPs use inline filters rather than internal filters in the pump, so this should be an easy fix and makes a world of difference when a car's stumbling on acceleration. Also keep the air filter clean and fresh as well. You may also need to clean the throttle body with some carb cleaner as they can gunk up over time. Lastly, if you're so inclined, do a top engine clean with SeaFoam (google Seafoam top engine clean for a video). All of these are inexpensive fixes, and should bring your Prix's acceleration back up to par. 150K is nothing for a GP...if cared for and maintained you can get 150K more miles from it.

3,935

But first do some proper diagnostics. Have it scanned for trouble codes. The computer often knows what's wrong and just needs to be asked.

Your Answer

Add photo

Related Questions

  • Hard acceleration 2 answers

    I have a 2004 Grand Prix with about 150,000 miles on it!! Just recently it became hard for me to accerlate! And sometimes before taking off or when I come to a stop n press the accelerate it hesita...

    2004 Pontiac Grand Prix GT1

    -

    Maintenance & Repair

  • poor acceleration 1 answer

    i just brought a 1989 grand prix and the acceleration is poor from the go do u think its the convert

    1989 Pontiac Grand Prix

    -

    Maintenance & Repair

  • bad noise under acceleration and then sut down 1 answer

    was like pre ignition. next hard acceleration bad noise and sut down. shakes bad and loud knocking sound. no codes stored.

    2004 Pontiac Grand Prix GTP

    -

    Maintenance & Repair

  • Sputter/backfire and sulfur foul smell on heavy acceleration 5 answers

    Changed iac,maf,tps,fuel pressure regulator,fuel pump, air filter, fuel filter, csps, egr, oil change, exhaust work(mufflers) and ignition module. Got the car to stop stalling on start and runs gr...

    2000 Pontiac Grand Prix GTP Coupe

    -

    Maintenance & Repair

  • Transmission shifting hard 1 answer

    I have an 06' Grand Prix and if I drive slow (0-20mph) for a good period of time or do a lot of stopping and going with a lot of slow driving, for instance in heavy traffic, my car will start shifting...

    2006 Pontiac Grand Prix Base

    -

    Maintenance & Repair

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 4,270
#2 Tom Demyan
Tom Demyan
Reputation 2,870
#3 munron
munron
Reputation 2,210
View All

Related Models For Sale

Used Chevrolet Impala
590 Great Deals out of 34,066 listings starting at $899
Used Pontiac G6
91 Great Deals out of 4,082 listings starting at $1,650
Used Pontiac Bonneville
4 Great Deals out of 511 listings starting at $1,799
Used Chevrolet Monte Carlo
20 Great Deals out of 1,419 listings starting at $1,995
Used Pontiac Grand Am
1,183 listings starting at $1,599
Used Ford Mustang
543 Great Deals out of 45,845 listings starting at $1,999
Used Pontiac GTO
4 Great Deals out of 465 listings starting at $6,000
Used Chevrolet Malibu
1,062 Great Deals out of 77,909 listings starting at $1,500
Used Honda Accord
947 Great Deals out of 77,739 listings starting at $899
Used Nissan Maxima
323 Great Deals out of 24,381 listings starting at $999
Used Nissan Altima
1,153 Great Deals out of 79,677 listings starting at $500

Used Cars For Sale

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.