I have a 1999 Pontiac Grand Am GT. I just replaced the lower intake manifold Gasket due to a coolant leak. And its still leaking coolant. Any ideas?

Asked by Jun 24, 2014 at 01:17 AM about the 1999 Pontiac Grand Am 2 Dr GT Coupe

Question type: Maintenance & Repair

3 Answers

4,805

Sorry to have to make you take it off again. Check the mating surfaces with a metal straightedge. Use only a minimal amount of silicone gasket cement - some mechanics install these gaskets dry and they still work just fine if the surfaces are clean (surgically clean, that is). If the mating surfaces aren't absolutely flat then the engine has overheated at some point, and you won't get a decent seal unless you have them both machined.

Best Answer Mark helpful

Here the thing I didn't do it. I took it back to the mechanic right after it happened and he said its just coming out of the overflow and it should be fine. But I drove it again and it keeps happening. Especially at high rpms. When I accelerate hard the low coolant light comes on and I hear a squeak in the engine like a wet belt then I stop and turn it off and its leaking everywhere and its all steaming and stuff. I have no clue what to do. Some people said water pump? Not sure

4,805

Belts will squeak anytime they get wet, it doesn't mean the water pump is at fault. You'll need to find where the coolant is coming from before trying to diagnose the problem. Blast everything dry, take the car out for a short ride, check the engine for anything wet. Keep doing that until you locate where it's coming from. Some leaks only happen in a hot engine, so it m ay take a few trips to nail it.

Your Answer

Grand Am

Looking for a Used Grand Am in your area?

CarGurus has 1,087 nationwide Grand Am listings starting at $994.

ZIP:

Pontiac Grand Am Experts

  • #1
    tenspeed
    Reputation
    7,840
  • #2
    John Saffrahn
    Reputation
    1,610
  • #3
    Tom Demyan
    Reputation
    1,540
View All

Related Models For Sale

Used Pontiac Grand Prix
28 Great Deals out of 2,636 listings starting at $1,449
Used Pontiac Firebird
3 Great Deals out of 770 listings starting at $2,500
Used Chevrolet Impala
542 Great Deals out of 35,255 listings starting at $900
Used Ford Mustang
593 Great Deals out of 36,388 listings starting at $899
Used Chevrolet Malibu
980 Great Deals out of 65,648 listings starting at $1,000
Used Chevrolet Camaro
444 Great Deals out of 30,843 listings starting at $1,450
Used Nissan Altima
1,023 Great Deals out of 78,793 listings starting at $1,695
Used Pontiac Bonneville
497 listings starting at $3,699
Used Honda Civic
786 Great Deals out of 70,038 listings starting at $1,500
Used Pontiac Sunfire
298 listings starting at $2,100

Used Cars For Sale

2005 Pontiac Grand Am For Sale
116 listings starting at $994
2004 Pontiac Grand Am For Sale
286 listings starting at $2,995

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.