overheating
240

Asked by boilermaker27 Dec 27, 2010 at 07:52 PM about the 1998 Pontiac Sunfire 2 Dr GT Coupe

Question type: Maintenance & Repair

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?

3 Answers
21,415

Michael answered 13 years ago

I would replace the radiator cap if you have not already.

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25

gmguy11 answered 13 years ago

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

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40

Brenda answered 11 years ago

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.

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