my 2001 sunfire when ever i use the heater it runs about 4-6 marks past the 195 running temp sometimes it goes a littrle hotter when warming up in cold weather , coolant level is fine new thermostat water pump is only couple yrs old thing is when i turn off heat temp slowly goes back to 195 any ideas what to look at next?

30

Asked by Sep 11, 2014 at 09:17 AM about the 2001 Pontiac Sunfire SE Coupe

Question type: Maintenance & Repair

2001 sunfire 2.2L

2 Answers

4,805

Your engine probably isn't actually overheating. It's possible that you have a little bit of air in the system. Running the heat in the car reduces the coolant level slightly, putting the temperature sensor out of touch the with actual coolant temp. Try pressure-purging the system to get all the air out. Check the radiator cap to make sure it's releasing pressure into the recovery tank and then allowing the coolant back in as the system cools.

30

how do you get all the air out

3 of 3 people found this helpful.

Your Answer

Pontiac Sunfire Experts

  • #1
    John Saffrahn
    Reputation
    2,820
  • #2
    Joeyadams
    Reputation
    1,340
  • #3
    Warren0007
    Reputation
    1,250
View All

Related Models For Sale

Used Pontiac Firebird
8 Great Deals out of 875 listings starting at $2,500
Used Pontiac Grand Am
1,255 listings starting at $994
Used Pontiac Grand Prix
22 Great Deals out of 2,706 listings starting at $1,500
Used Ford Mustang
597 Great Deals out of 36,129 listings starting at $1,800
Used Chevrolet Camaro
409 Great Deals out of 30,592 listings starting at $2,495
Used Ford F-150
2,520 Great Deals out of 193,860 listings starting at $799
Used Dodge Neon
587 listings starting at $2,495
Used Mitsubishi Eclipse
23 Great Deals out of 1,191 listings starting at $1,999

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.