underhood

Asked by Feb 07, 2009 at 08:41 PM about the 1991 Pontiac Grand Prix

Question type: Maintenance & Repair

when engine warms up rpm runs hi and low turn lights on car quits

1 Answer

1,535

Check the alternator first. If the car stalls when the lights are turned on with a warm engine, that is likely due to loss of voltage at the computer. Check and see if the alternator stops charging when it gets hot. It is not uncommon for alternators to fail on these cars, and alternator failure can cause numerous driveability issues.

Your Answer

Pontiac Grand Prix Experts

  • #1
    Js08016
    Reputation
    4,470
  • #2
    Tom Demyan
    Reputation
    3,110
  • #3
    munron
    Reputation
    2,500
View All

Related Models For Sale

Used Pontiac Bonneville
486 listings starting at $1,799
Used Ford Mustang
606 Great Deals out of 38,714 listings starting at $1,895
Used Pontiac Grand Am
1,079 listings starting at $1,800
Used Chevrolet Camaro
437 Great Deals out of 31,440 listings starting at $1,450
Used Pontiac Firebird
9 Great Deals out of 765 listings starting at $3,500
Used Honda Accord
1,116 Great Deals out of 72,482 listings starting at $850

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
13 Great Deals out of 429 listings starting at $1,750
2007 Pontiac Grand Prix For Sale
3 Great Deals out of 364 listings starting at $2,295
2006 Pontiac Grand Prix For Sale
435 listings starting at $3,950
2005 Pontiac Grand Prix For Sale
4 Great Deals out of 356 listings starting at $1,450

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.