bad noise under acceleration and then sut down


Asked by Jul 18, 2014 at 08:15 PM about the 2004 Pontiac Grand Prix GTP

Question type: Maintenance & Repair

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

1 Answer


Possibly a plugged catalytic converter. I'd start there. I know there's a lot of differences in years, but it sounds similar to something my '95 Bonneville did near the end of its life. After some cool down time it would behave itself again until the next time I accelerated hard. I think it was the computer doing weird things. It was a high miler and fortunately my son used it to push a much slower vehicle in a snowstorm, so I sold it to the nice insurance company and didn't have to fix it.

Your Answer

Add photo

Related Questions

  • Noise while turning 4 answers

    I have a 1998 Grand Prix that makes a noise when turning. The best way i can describe the noise is that it sounds slightly like a whale. kind of a 'whurrrmm' sound but not a metallic grinding soun...

    1998 Pontiac Grand Prix


    Maintenance & Repair

  • Ca will shut off after running for a few seconds 1 answer

    Car will sut off after running a few seconds and the the security light will flash. Any Ideas

    2001 Pontiac Grand Prix SE


    Maintenance & Repair

  • noise also when turning right 35 answers

    We have a 2004 grand prix and it makes a noise everytime we turn right the sound is the same as if the sway bar is broke (we know this because that happended 4 mnths before this). This has been going ...

    2004 Pontiac Grand Prix GT1


    Maintenance & Repair

  • Pontiac Grand Prix SE 2002 3.1 High Pitch Squeak when accelerating 5 answers

    Hello, my Pontiac Grand Prix SE 2002 3.1 squeaks (high pitch) really bad when I accelerate above 2000 RPM, if you leave the gas pressed, it keeps doing it and it doesn't go away, it only goes away w...

    2002 Pontiac Grand Prix SE


    Maintenance & Repair

  • A water noise 19 answers

    When I start my car I hear a bubbling noise. This is concerning seeing how I just bought the vehicle. What could that be?

    2008 Pontiac G6 GT


    Maintenance & Repair

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Reputation 3,680
#2 Tom Demyan
Tom Demyan
Reputation 2,450
#3 munron
Reputation 1,950
View All

Related Models For Sale

Used Chevrolet Impala"
939 Great Deals out of 35,889 listings starting at $700
Used Pontiac Bonneville"
861 listings starting at $1,450
Used Pontiac G6"
148 Great Deals out of 5,688 listings starting at $999
Used Pontiac Grand Am"
1,994 listings starting at $1,995
Used Chevrolet Monte Carlo"
13 Great Deals out of 2,073 listings starting at $2,900
Used Chevrolet Malibu"
1,181 Great Deals out of 72,977 listings starting at $695
Used Pontiac GTO"
8 Great Deals out of 515 listings starting at $5,995
Used Ford Mustang"
728 Great Deals out of 41,499 listings starting at $900
Used Nissan Altima"
1,492 Great Deals out of 88,167 listings starting at $1,195
Used Nissan Maxima"
475 Great Deals out of 24,268 listings starting at $800
Used Chrysler 300"
571 Great Deals out of 21,278 listings starting at $1,490

Used Cars For Sale

2005 Pontiac Grand Prix GTP For Sale
57 listings starting at $3,000