What temperature should my 2007 Pontiac g6 3.5 litter engine be

Asked by GuruD6ZX1 Sep 18, 2017 at 10:17 PM about the 2007 Pontiac G6 GT

Question type: Maintenance & Repair

My 2007 pontiac g6 3.5 litter engine runs
at 240 is that normal or could it be the
thermostat

6 Answers
40,145

James answered 7 years ago

thermostat , 190 f normal ,,too hot will burn valves and cause damaging detonation ,

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Mark__1 answered 5 years ago

240 Deg F is way too hot. I own a 2006 Pontiac G6. and mine was running at 180 to 190 Deg F. , which is too cold ( Low cooling temps will cause the PCM to add to more fuel to raise the temp ). I changed the thermostat ( Located in the block just under the air intake pipe at the throttle body, driver side ) as it was leaking by and now my running temps range from 195 to 201 Deg. F max. Your overheating problem either means cooling water pump trouble ( pump not turning, air bound ) radiator fans not running. Radiator trouble. I would check that out pronto and don't run the engine anymore than necessary to troubleshoot it. The thermostat for some reason could also be failing to open. Good luck.

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Mark__1 answered 5 years ago

I use a Konwei scanner to double check the temps

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GuruF2S7G answered 4 years ago

i got a 2007 Pontiac what temp does it get to turn the cooling fans on

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