1995 Pontiac Bonneville Temperature Gauge Fluctuates

1995 PONTIAC BONNEVILLE
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REDRIDINGBONNIE
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Engine Performance problem
1995 Pontiac Bonneville 6 cyl Automatic 168K miles

Hi,
I have a 1995 Bonneville (not supercharge) and recently (past 2-3 days) the heat has started blowing out only cool air, and while driving the temperature gauge will fluctuate between 200 and the notch right above the red "over heating zone" (sorry i dont know what temp that is!!) BUT NEVER OVERHEATS. Ive checked the coolant levels and everything is normal to my knowledge. Is there any other explanation for this problem?
Jan 21, 2009 at 3:33 PM
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HARLAN1234
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I would change the thermostat. Usually if your thermostat is bad there won't be any heat, and your car will get hot. it's a fairly inexpensive part also.
Feb 6, 2009 at 2:36 PM
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