I have a question about my 2005 pontiac grand prix gt.

Asked by Apr 30, 2015 at 01:58 PM about the 2005 Pontiac Grand Prix GT

Question type: Maintenance & Repair

Basically, half of the time I start my car it starts up very weak and immediatly starts
sputtering and then dies. The other half of the time it starts up very strong. Replaced
the battery 3 months ago, and have alternator tested along with the battery just to
make sure today and both are good. Also, when it starts sputtering, if I give it gas then
it will turn over just fine.... its only when i turn the key over and thats it is when the
above happens... any help is much appreciated.

2 Answers


Clean throttle body, when was last time fuel filter was replaced? Check air filter. Is check engine light on?


Remove your Mass Air Flow sensor and clean it with a can of CRC MAF cleaner. Do what CamaroCollector said as well. Also remove your Idle Air Control valve and clean that. A bad Engine Coolant Temp sensor will also give you a hard start if it's going bad.

Your Answer

Pontiac Grand Prix Experts

  • #1
  • #2
    Tom Demyan
  • #3
View All

Related Models For Sale

Used Chevrolet Impala
506 Great Deals out of 32,205 listings starting at $1,000
Used Pontiac Bonneville
4 Great Deals out of 407 listings starting at $1,995
Used Dodge Charger
326 Great Deals out of 36,250 listings starting at $1,999
Used Pontiac G6
32 Great Deals out of 3,783 listings starting at $1,000
Used Chevrolet Monte Carlo
5 Great Deals out of 1,187 listings starting at $1,125
Used Pontiac Grand Am
954 listings starting at $2,295
Used Pontiac GTO
3 Great Deals out of 392 listings starting at $3,950
Used Ford Mustang
344 Great Deals out of 41,949 listings starting at $1,488
Used Chevrolet Malibu
1,007 Great Deals out of 53,960 listings starting at $1,599
Used Buick LaCrosse
321 Great Deals out of 14,432 listings starting at $500
Used Jeep Grand Cherokee
874 Great Deals out of 71,832 listings starting at $900

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.