i have a 1998 Pontiac grand am 4cyl. 2.4 l ohc engine and when I turn on the heat the temperature gauge gauge goes almost to the dangerous level.when I turn it off it goes back to normal.what would cause this and how can I fix it?

Asked by migration_allendugga... Jan 16, 2014 at 09:17 AM about the 1998 Pontiac Grand Am

Question type: Maintenance & Repair

my 1998 Pontiac grand am 4cyl. 2.4 l ohc engine is oveheating when the heat is turned on .the tempature gauge goes almost to the top with the heat on then returns to normal after I turn the heat off.what could be causing this and how can I fix it? also, where is the thermostat located and how do I change it?

1 Answer

9,175

Most often this problem is caused by low coolant level, or air in the system. Have the coolant system flushed and refilled, warm the engine for a few minutes and recheck the coolant level. Make sure to purge any trapped air by squeezing the radiator hoses, you should feel "solid" water, no air. Your T-stat is in the housing under the water pump, near the firewall. You will have to remove the exhaust manifold in order to get to it.

1 people found this helpful.

Your Answer:

Pontiac Grand Am Experts

  • #1
    tenspeed
    Reputation
    10,280
  • #2
    Js08016
    Reputation
    2,250
  • #3
    John Saffrahn
    Reputation
    2,150
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Pontiac Grand Prix
10 listings starting at $3,499
Used Pontiac Firebird
11 listings starting at $29,888
Used Ford Mustang
33 Great Deals out of 924 listings starting at $2,495
Used Chevrolet Camaro
13 Great Deals out of 515 listings starting at $8,995
Used Chevrolet Monte Carlo
5 listings starting at $5,495
Used Nissan Maxima
13 Great Deals out of 337 listings starting at $2,493
Used Chevrolet Silverado 1500
106 Great Deals out of 5,625 listings starting at $3,990
Used Toyota RAV4
97 Great Deals out of 4,082 listings starting at $2,995
Used Toyota Camry
55 Great Deals out of 1,661 listings starting at $1,495

Used Cars for Sale

2004 Pontiac Grand Am For Sale
3 listings starting at $2,888
2002 Pontiac Grand Am For Sale
3 listings starting at $2,292

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. Content will be removed if CarGurus becomes aware that it violates our policies.