2002 grand prix rpm goes up and down when ruuning idle and car uses twice as nuch gas replaced tps problem still exists

Asked by Mar 28, 2016 at 09:55 PM about the 2002 Pontiac Grand Prix GT

Question type: Maintenance & Repair

1 Answer

11,670

sounds like you might have a vacuum leak, could cause the idle problem. also an idle air control valve could do it. a vac leak could also cause more fuel consumption. also when was your last tune up? your last air filter?, fuel filter? Scan the computer for codes also. with the engine running like that there should be a code stored.

1 of 1 people found this helpful.

Your Answer

Pontiac Grand Prix Experts

  • #1
    Js08016
    Reputation
    4,370
  • #2
    Tom Demyan
    Reputation
    2,970
  • #3
    munron
    Reputation
    2,350
View All

Related Models For Sale

Used Chevrolet Impala
570 Great Deals out of 34,619 listings starting at $1,000
Used Pontiac Bonneville
524 listings starting at $1,799
Used Chevrolet Monte Carlo
12 Great Deals out of 1,347 listings starting at $995
Used Ford Mustang
743 Great Deals out of 42,668 listings starting at $1,300
Used Pontiac Grand Am
1,085 listings starting at $1,599
Used Chevrolet Camaro
425 Great Deals out of 31,674 listings starting at $2,395
Used Chevrolet Malibu
1,242 Great Deals out of 77,953 listings starting at $1,500
Used Pontiac Firebird
12 Great Deals out of 817 listings starting at $1,900
Used Honda Accord
1,000 Great Deals out of 62,552 listings starting at $999

Used Cars For Sale

2007 Pontiac Grand Prix GT For Sale
71 listings starting at $2,400
2006 Pontiac Grand Prix GT For Sale
7 Great Deals out of 75 listings starting at $1,800
2005 Pontiac Grand Prix GT For Sale
3 Great Deals out of 112 listings starting at $2,350

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.