My 2000 Grand Prix is overheating, mechanic doesnt know whats wrong with it.

Asked by Nov 09, 2015 at 11:50 AM about the 2000 Pontiac Grand Prix SE

Question type: Maintenance & Repair

My car was saying low coolant when I turned on my car but the sign would go away after a bit of driving. A couple days later I put half a gallon of coolant in. The next day my car began to overheat for the first time so I pulled over and put the other half of the gallon in and drove home with no problems. Yesterday is the first time I drove since the last overheating incident and the guage began to go up after a couple minutes of driving. It was close to the red zone but I managed to make it to my destination. I went to my mechanic to have him see if there was a leak or something that could be causing this problem. After an hour of waiting he told me he checked everything that could possibly be causing the overheating and he couldn't find a thing wrong, other than my battery being close to dead. SO I am completely stumped.... Any advice?

4 Answers

107,955

If you are not leaking fluid out of the car onto the floor then you may have a blown head gasket. Here is what you need to look for. https://www.youtube.com/watch?v=uVn-IDi7da8

3 of 3 people found this helpful.
Best Answer

The mechanic informed me that that wasn't the problem..

107,955

If you have no water leaking on the ground, then it has to be going somewhere? Two places, the tranny cooler if you have one build into the radiator is leaking back into the transmission or its being sucked into the engine.

3 of 3 people found this helpful.
4,175

Short term your problem is likely air trapped in the cooling system. It needs to be bled out and filled properly. Long term you need to figure out where the coolant is going. If its not showing up in the oil or on the ground the leak is likely quite minor and can probably be corrected by adding one or two units of Bars Leak to you system. If the leak is larger you will need to start replacing gaskets and intake plenum. For now, get it full and keep an eye on the coolant level. Its getting to be an old car. You don't want to get too carried away spending money on it.

Your Answer

Add photo

Related Questions

  • My 2000 Grand Prix is overheating, mechanic doesnt know whats wrong with it. 4 answers

    My car was saying low coolant when I turned on my car but the sign would go away after a bit of driving. A couple days later I put half a gallon of coolant in. The next day my car began to overheat fo...

    2000 Pontiac Grand Prix SE

    -

    Maintenance & Repair

  • 2000 grand prix overheating 3 answers

    While driving on the highway my 3800 v6 2000 grand prix started making a noise under the hood every time I accelerated. When let off the gas it stopped. Started to overheat and I got it off the h...

    2000 Pontiac Grand Prix GTP

    -

    Maintenance & Repair

  • my car wont stop it a 2000 grand prix SE 4 answers

    My car is a black grand Prix SE year 2000. One day I wasbdriving and my brakes suddenly went out... now I have to pump my brakes to get it to stop and if in have to suddenly stop I have to floor boa...

    2000 Pontiac Grand Prix SE

    -

    Maintenance & Repair

  • 2000 Grand Prix Gt Cel doesnt work 2 answers

    On my 2000 grand prix i realized that the check engine light does not work. Does anyone know how to fix this?

    2000 Pontiac Grand Prix GT

    -

    Maintenance & Repair

  • 2000 pontiac grand prix overheating 3 answers

    When sitting in stop and go traffic my temp Guage steadily goes up, hasn't hit the red while driving but does when I turn the car off. When driving on the highway it never overheats but as soon as...

    2000 Pontiac Grand Prix

    -

    Maintenance & Repair

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 2,751 nationwide Grand Prix listings starting at $1,200.

ZIP:

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 4,370
#2 Tom Demyan
Tom Demyan
Reputation 2,970
#3 munron
munron
Reputation 2,350
View All

Related Models For Sale

Used Chevrolet Impala
570 Great Deals out of 34,619 listings starting at $1,000
Used Pontiac Bonneville
524 listings starting at $1,799
Used Chevrolet Monte Carlo
12 Great Deals out of 1,347 listings starting at $995
Used Pontiac Grand Am
1,085 listings starting at $1,599
Used Ford Mustang
743 Great Deals out of 42,668 listings starting at $1,300
Used Chevrolet Camaro
425 Great Deals out of 31,674 listings starting at $2,395
Used Chevrolet Malibu
1,242 Great Deals out of 77,953 listings starting at $1,500
Used Pontiac Firebird
12 Great Deals out of 817 listings starting at $1,900
Used Honda Accord
1,000 Great Deals out of 62,552 listings starting at $999

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
12 Great Deals out of 378 listings starting at $1,200
2007 Pontiac Grand Prix For Sale
13 Great Deals out of 369 listings starting at $1,350
2006 Pontiac Grand Prix For Sale
10 Great Deals out of 461 listings starting at $1,800
2005 Pontiac Grand Prix For Sale
4 Great Deals out of 359 listings starting at $2,350

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.