I have heat only when fan is on low and i changed the acuator for flap and still no heat.it dont leak or over heat.

Asked by Nov 28, 2015 at 07:52 PM about the 2004 Pontiac Grand Prix GT1

Question type: Maintenance & Repair

1 Answer

27,075

The heater core is always "on," in that there is always engine coolant flowing through it just like your radiator. If you have heat at low, you should have heat at every other setting. The temperature blend door directs incoming air to either pass over the heater core or to pass over the AC coil. I would check that the temp blend door is indeed functioning, and that the heater core is indeed getting fully hot (in other words no restrictions, blockages)

Your Answer

Pontiac Grand Prix Experts

  • #1
    Js08016
    Reputation
    4,410
  • #2
    Tom Demyan
    Reputation
    3,040
  • #3
    munron
    Reputation
    2,470
View All

Related Models For Sale

Used Chevrolet Impala
545 Great Deals out of 35,192 listings starting at $900
Used Pontiac Bonneville
503 listings starting at $2,995
Used Pontiac G6
65 Great Deals out of 3,855 listings starting at $1,600
Used Chevrolet Monte Carlo
3 Great Deals out of 1,295 listings starting at $1,488
Used Ford Mustang
591 Great Deals out of 36,206 listings starting at $1,200
Used Pontiac Grand Am
1,079 listings starting at $994
Used Pontiac GTO
8 Great Deals out of 486 listings starting at $5,995
Used Chevrolet Malibu
976 Great Deals out of 65,935 listings starting at $1,000
Used Chrysler 300
313 Great Deals out of 17,992 listings starting at $990
Used Nissan Maxima
266 Great Deals out of 22,818 listings starting at $1,499

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.