1998 grand prix over heating

Asked by Feb 15, 2010 at 07:35 PM about the 1998 Pontiac Grand Prix

Question type: Maintenance & Repair

the top radiator hose gets hot but the bottom one does not. no heat in the car and i have replaced
the thermostat. coolant level is good.

5 Answers

5,085

assuming that you are not getting heat from the vent, my guess is that something is blocking coolant flow to or from the heater core (supplies heat for interior comfort)

1 of 1 people found this helpful.
675

when you replaced the thermostat did you burp the system?

5 of 5 people found this helpful.
115

Check your heater core and the water pump. Also, it is possible that there is an air bubble in the system. Pressurize it to clear the air and improve water flow.

2 of 2 people found this helpful.
40

how do you get all the air out or bulp it like you say

4 of 4 people found this helpful.
30

I have the same exact problem. but I replaced the therostat. and the temp still goes up when the car idles. then it goes down when I take off..

3 of 3 people found this helpful.

Your Answer

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 2,678 nationwide Grand Prix listings starting at $1,750.

ZIP:

Pontiac Grand Prix Experts

  • #1
    Js08016
    Reputation
    4,470
  • #2
    Tom Demyan
    Reputation
    3,110
  • #3
    munron
    Reputation
    2,510
View All

Related Models For Sale

Used Pontiac Bonneville
491 listings starting at $1,799
Used Chevrolet Monte Carlo
10 Great Deals out of 1,255 listings starting at $999
Used Ford Mustang
597 Great Deals out of 39,170 listings starting at $1,895
Used Pontiac Grand Am
1,073 listings starting at $1,500
Used Chevrolet Malibu
1,132 Great Deals out of 62,115 listings starting at $880
Used Chevrolet Camaro
451 Great Deals out of 31,416 listings starting at $1,450
Used Pontiac Firebird
9 Great Deals out of 770 listings starting at $4,000
Used Jeep Grand Cherokee
1,071 Great Deals out of 72,264 listings starting at $1,195

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
10 Great Deals out of 447 listings starting at $1,750
2007 Pontiac Grand Prix For Sale
3 Great Deals out of 372 listings starting at $2,295
2006 Pontiac Grand Prix For Sale
437 listings starting at $3,950
2005 Pontiac Grand Prix For Sale
360 listings starting at $4,488

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.