Question about 2001 Pontiac Sunfire
We replaced the motor in my sunfire with a used motor heard it run before bought and ran fine she does but after about 3 days of driving it the motor started over heating and smoking took it to a mechanic who checked everything our pressure in the coolent lines is good no leaks, water pump is running and he suggested replacing the thermastate so thats what we did now it is over heating still any suggestions?
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Posted on Jan 02, 2017
SOURCE: I have a 2001 sunfire.
this could be your oil cooler check your water and see if there is any traces of oil in the water even if there aren't I cant see it being anything else because of what you have already had replaced,Ihope this is of some help to you.
Posted on Jul 29, 2008
SOURCE: pontiac sunfire overheating
hello! I had the same problem with my 2000 Pontiac Sunfire... there might be one of these 2 problems with it.... maybe the Heater Core is jammed and the coolant dosen't flow thru the engine to cool it off, or the water pump is defective.... does the heating works or not? if yes, the water pump is defect, if not, the heater core is jammed, try a ''radiator hose cleaner'' (sold in Napa's or Carquest..) it will act as a kind of ''decloaker''.. if works, good! 15$ solution... if not, replace Heater Core... ~150$
Posted on Jan 15, 2012
SOURCE: I have a 98 sunfire. it suddenly overheated . i replaced the thermastate and drained the radiater , an changed the oil. it still is over heating. there is no oil in the water and no water in the oil .
Did you check the water pump?
Posted on Jun 02, 2012
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