my 2.4 sunfire has been overheating and gurgling when shut off. Changed thermostat, didn't help. Water pump appears to be fine. Ran water through radiator in both directions and did not seem restricted. No oil in water nor water in oil. Seems to run fine but temp. gauge is just below warnings. Could this be a head gasket? or any ideas?
I would replace the radiator cap if you have not already.
if you fill through over flow tank they get air pockets and overheat put ass end up higher then motor takecap off fill res up let run it will suck water down when air pocket is gone
This overflow cap is pressurized. Change the cap. Its $8 to 9 and could have saved a great deal of $ on other repairs, but leason learned.
Looking for a Used Sunfire in your area?
CarGurus has 324 nationwide Sunfire listings and the tools to find you a great deal.
Search Pontiac Sunfire Questions
Pontiac Sunfire Experts