if it is a head gasket wouldnt the car run poorly? or what exactly should i be looking for

Asked by Jan 07, 2016 at 03:46 PM about the 2002 Pontiac Grand Prix GT

Question type: Maintenance & Repair

that just it the car runs perfect except for overheating all the time

3 Answers

20

Things to confirm blown head gasket ... Check the oil dip stick if the oil looks milky there's antifreeze in it which means blown gasket ... Check the antifreeze reservoir see if there's oil floating around in there ... Check for white smoke at the exhaust and smell to see if it smells sweet ... It could also be a cracked head ... Did you have over heating issues? And if you did anything with the cooling system ? Make sure to bleed it and get the air out to avoid vapor lock

1 people found this helpful.
20

Have you replaced the thermostat? Does it cool down when you turn of the heat ?

1 people found this helpful.
4,875

The most common cause of overheating is low coolant level or air trapped in the system. If you have some sort of leak your coolant level may be so low it won't cool properly. Fill it up and see what happens. If the coolant gets low again soon you have a leak somewhere. It may be leaking into the engine and being burned off. If it happens gradually enough you won't notice it. My car does that. It may also show up in the oil as has been mentioned or it may be leaking externally through a gasket or even a leaky radiator. There are usually tell tale signs of this under the hood. As Nique said it is also very important to bleed all air from the system when refilling it if it has been drained for any reason. There is a bleeder valve near the thermostat for that. If there is air in the system it will overheat even though the system appears to be full.

1 people found this helpful.

Your Answer

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 1,795 nationwide Grand Prix listings starting at $2,500.

ZIP:

Pontiac Grand Prix Experts

  • #1
    Js08016
    Reputation
    4,660
  • #2
    Tom Demyan
    Reputation
    3,250
  • #3
    munron
    Reputation
    2,690
View All

Related Models For Sale

Used Chevrolet Impala
395 Great Deals out of 25,692 listings starting at $900
Used Chevrolet Monte Carlo
937 listings starting at $3,998
Used Pontiac Bonneville
325 listings starting at $3,395
Used Chevrolet Camaro
241 Great Deals out of 28,842 listings starting at $1,800
Used Ford Mustang
256 Great Deals out of 36,838 listings starting at $2,500
Used Pontiac Grand Am
711 listings starting at $2,500
Used Chevrolet Malibu
461 Great Deals out of 50,170 listings starting at $2,111
Used Pontiac Firebird
8 Great Deals out of 684 listings starting at $3,695
Used Jeep Grand Cherokee
801 Great Deals out of 75,881 listings starting at $899

Used Cars For Sale

2007 Pontiac Grand Prix GT For Sale
44 listings starting at $2,770
2006 Pontiac Grand Prix GT For Sale
37 listings starting at $2,500

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.