Multiple Coolant System Symptoms

Asked by Aug 31, 2011 at 04:45 PM about the 1998 Pontiac Sunfire 2 Dr SE Coupe

Question type: Maintenance & Repair

Coolant Temperature Gauge not working - Replaced Coolant Temperature
Sensor...No Fix

Collapsed Upper Radiator Hose...Why???

Cooling Fan not activating during idling causing boil over...

Are these all related?  Please Help!

1 Answer

40

I had an over heating problem on my daughters car. It may be a combination of an air lock and a thermostat. Are you getting any water in the oil?. Take and put direct power to the fan by running a positive and negetive wire from the battery to the terminals on the fan.Keep your hands out of the way of the fan. This will verify the fan works. I would also replace the upper radiater hose as it may have lost its integrety. If it boils over the thermostat being stuck closed will seal and as water leaks at the overflow it would create a vacuem and collapse the hose. Do any codes show up on the computer. I have one saying cooling fan generic but I think it may be the sensor although the temperature gauge works and this is a secondary function of the sensor

4 of 4 people found this helpful.

Your Answer

Pontiac Sunfire Experts

  • #1
    John Saffrahn
    Reputation
    2,820
  • #2
    Joeyadams
    Reputation
    1,350
  • #3
    Warren0007
    Reputation
    1,250
View All

Related Models For Sale

Used Pontiac Firebird
6 Great Deals out of 769 listings starting at $2,500
Used Pontiac Grand Am
1,087 listings starting at $994
Used Pontiac Grand Prix
28 Great Deals out of 2,640 listings starting at $1,449
Used Ford Mustang
531 Great Deals out of 35,434 listings starting at $1,200
Used Ford Focus
754 Great Deals out of 54,998 listings starting at $800
Used Chevrolet Camaro
411 Great Deals out of 30,558 listings starting at $1,450

Used Cars For Sale

2004 Pontiac Sunfire For Sale
37 listings starting at $2,495

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.