My car continue to overheat while running in idle or at low speeds

20

Asked by Jun 22, 2016 at 08:45 PM about the 2007 Pontiac Grand Prix GXP

Question type: Maintenance & Repair

I have a 2007 Pontiac Grand Prix gxp. My car
overheats while at idle and or low speeds.   On the
highway it is fine   I just had the coolant flushed but
it is still happening I also replaced the radiator cap

3 Answers

294,055

Symptoms of overheating at idle are low coolant level, bad thermostat, rad fan not coming on, head gasket or water pump impeller corroded or broken.

6,095

I agree with Tom. Look at the fan operation, coolant level and thermostat first. You will probably find the problem with one of those and they are simple to fix. Water pump and head gasket are significantly harder to repair and should not be attempted by a novice.

1 people found this helpful.
5,085

And who did your coolant replacement? Air trapped in the system after being drained and refilled is extremely common and will cause overheating. If it was a shop, they probably knew to bleed the air out and its likely OK, but if it was a do it yourselfer project you might want to check again for air in the system. There is a bleeder valve near the thermostat.

1 people found this helpful.

Your Answer:

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 1,779 nationwide Grand Prix listings starting at $800.

ZIP:

Pontiac Grand Prix Experts

  • #1
    Js08016
    Reputation
    4,720
  • #2
    Tom Demyan
    Reputation
    3,300
  • #3
    munron
    Reputation
    2,840
View All

Related Models For Sale

Used Chevrolet Impala
431 Great Deals out of 25,967 listings starting at $950
Used Pontiac G8
6 Great Deals out of 345 listings starting at $5,000
Used Dodge Charger
294 Great Deals out of 32,236 listings starting at $1,850
Used Chevrolet Monte Carlo
4 Great Deals out of 954 listings starting at $2,950
Used Pontiac Grand Am
726 listings starting at $1,900
Used Pontiac GTO
4 Great Deals out of 375 listings starting at $7,500
Used Pontiac G6
40 Great Deals out of 2,801 listings starting at $699
Used Ford Mustang
256 Great Deals out of 38,495 listings starting at $1,350
Used Chevrolet Malibu
570 Great Deals out of 52,307 listings starting at $1,550
Used Dodge Challenger
146 Great Deals out of 23,904 listings starting at $7,995
Used Nissan Altima
737 Great Deals out of 66,540 listings starting at $1,000

Used Cars For Sale

2008 Pontiac Grand Prix GXP For Sale
30 listings starting at $3,995
2007 Pontiac Grand Prix GXP For Sale
18 listings starting at $4,299
2006 Pontiac Grand Prix GXP For Sale
3 Great Deals out of 22 listings starting at $4,199
2005 Pontiac Grand Prix GXP For Sale
5 listings starting at $4,329

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.