Pontiac Grand am 1997

20

Asked by May 28, 2017 at 05:27 AM

Question type: Maintenance & Repair

Car is running hot heater is
blowing cold air out of heater  and
engin is thumping when getting
hot I changed water pump
thermostat radiator got three
months ago don't know we're
water is going I put new freeze
plugs no water is dripping out

1 Answer

93,555

Check to see if there is white smoke coming from the exhaust tail pipe. If there is then there is a blown head gasket. Also it sounds like there is air in the cooling system for the heater core not to be heating up. Try purging the cooling system from the air pockets. Here is a video on how to do that... https://www.youtube.com/watch?v=zUpXgAJ1gjU

Your Answer:

Maintenance & Repair Experts

  • #1
    dandyoun
    Reputation
    109,100
  • #2
    tennisshoes
    Reputation
    101,460
  • #3
    tenspeed
    Reputation
    86,310
View All

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.