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

4,905

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.
635

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 2,746 nationwide Grand Prix listings starting at $1,200.

ZIP:

Pontiac Grand Prix Experts

  • #1
    Js08016
    Reputation
    4,370
  • #2
    Tom Demyan
    Reputation
    2,990
  • #3
    munron
    Reputation
    2,370
View All

Related Models For Sale

Used Pontiac Bonneville
524 listings starting at $1,799
Used Chevrolet Monte Carlo
13 Great Deals out of 1,364 listings starting at $995
Used Pontiac Grand Am
1,081 listings starting at $1,599
Used Ford Mustang
765 Great Deals out of 41,907 listings starting at $1,300
Used Chevrolet Camaro
443 Great Deals out of 31,771 listings starting at $2,395
Used Chevrolet Malibu
1,239 Great Deals out of 76,824 listings starting at $1,500
Used Pontiac Firebird
14 Great Deals out of 813 listings starting at $1,900
Used Honda Accord
1,099 Great Deals out of 61,913 listings starting at $999

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
12 Great Deals out of 374 listings starting at $1,200
2007 Pontiac Grand Prix For Sale
11 Great Deals out of 370 listings starting at $1,350
2006 Pontiac Grand Prix For Sale
8 Great Deals out of 462 listings starting at $1,800
2005 Pontiac Grand Prix For Sale
5 Great Deals out of 370 listings starting at $1,500

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.