1995 Pontiac Sunfire Engine tempurature problems

1995 PONTIAC SUNFIRE
189,000 MILES • 4 CYL • 2WD • AUTOMATIC
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BOSTITCH
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I live in BC, canada and just had an aircare test done to my care which is a 1995 pontiac sunfire. The results came back that I have high hydrocarbon and carbon monoxide outputs. I have also noticed recently that my engine tempurature will remain constant in the middle of the thermostat while driving but if I am stopped for a period of time the temp gauge will rapidly increase to just under the yellow point then decrease and repeat. is there any solutions you can think of and is it possible to give an estimate on how much you think it will cost to fix.
Jun 5, 2008 at 8:26 PM
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BMRFIXIT
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High HC reading possible cause a tune up
check ignition system
check fuel pressure regulator
check o2 sensors
as for the overheating I would check the coolant level
check coolant fan operation
check and or replace the thermostat

Jun 5, 2008 at 8:59 PM
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BOSTITCH
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the coolant is completely full, and the thermostat was replaced recently
Jun 5, 2008 at 9:41 PM
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BMRFIXIT
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Check coolant fan operation (relays ,fuses, fan motor ,sensor ..)
check radiator
flush coolant system
belts

Jun 5, 2008 at 10:00 PM
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BOSTITCH
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thanks for your help
Jun 5, 2008 at 11:39 PM
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