2000 grand am 3.4 changed my thermostat changed my temp. coolant sensor. why is my car still running at 200-220 and my temp gauge likes to jump up and dwn too only when it's heating up though whats up
40

Asked by Susan May 25, 2015 at 06:08 PM about the 2000 Pontiac Grand Am SE1

Question type: Maintenance & Repair

changed thermostat changed coolant temp sensor. my car never ran above 180 before
last summer when the temp gauge spiked.... now it runs at 200-220 it has shut off on
me once before.. my fans kick on and off like the are suppose to i'm now at a loss
please anyone with any info help... when i replaced thermostat left cap off of res. it
bubbled up i put cap on temp made it to 200 then kicked back down now it's staying at
195-215 when it gets up to 215 i turn on my heater and it stays around 195.

2 Answers
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Susan answered 9 years ago

too many lol almost 200,000 but the headgasket was just replaced last summer

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40

Susan answered 9 years ago

what is the best way to bleed this kind of system it doesn't have a cap it just has the res. on it

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