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I have a 2007 pontiac G6 3.5L engine and I cannot find the thermostat

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In a 2007 Pontiac G5 is overheating would it help to turn on the air conditioner

No it does the opposite Gale as it puts more strain on the engine to drive the compressor.

You need to make sure the radiator is full of coolant with no air pockets. People get confused with filling the radiator and filling the overflow reservoir. There is a cap on the radiator, remove it and top it up, run the engine and keep topping it up. Also make sure that your HEATING in the car is on FULL heat and FULL fan. Squeezing the radiator hoses will help to dislodge air. The level will rise and fall when the thermostat opens up. Rev the engine a bit, top up one last time and when there are no bubbles, replace the radiator cap. Turn the engine off and then top up the overflow reservoir. Use antifreeze mixed to the manufacturers specs, usually 50/50.

Have a look at some of these videos.


Jun 20, 2016 | 2007 Pontiac G5

1 Answer

Location of thermostat on a 2007 pontiac montana sv6

Follow the radiator hose back to the engine. Where the hose meets the engine is where the thermostat is. Should be two or three bolts holding the fixture on. Inside of that fixture is the thermostat. Make sure the engine is cooled down and make sure to replace the coolant that you will lose changing this. Easy fix.

Feb 17, 2015 | 2007 Pontiac Montana

1 Answer

Looking for thermostat housing hose that leads from radiator to engine goes straight to water pump 2007 grand prix 3.8l

the hose that goes to the water pump is usually the bottom radiator hose, the radiator hose that goes to the thermostat housing is the top radiator hose......cheers.

Sep 20, 2011 | 2007 Pontiac Grand Prix GXP Sedan

1 Answer

I used bars head gasket sealant in my car will it make my thermostat go bad

it could if it acts as a glue & sticks the moving part of the thermostat together disabling it from opening if the engine shows symptoms of overheating you will know where the problem is........hope this helps.......cheers.

Sep 19, 2011 | 2007 Pontiac Grand Prix GXP Sedan

2 Answers

The air coming from my heater in my 2007 Pontiac Grand Prix isn't very warm. What could be the problem?

Could be the thermostat in the engine is stuck open , but your engine temp guage would show that the engine is running cooler than usual. Could be a partially blocked heater core , low flow of hot coolant makes for cool air.

Feb 08, 2011 | 2007 Pontiac Grand Prix GXP Sedan

1 Answer

Thermostat for 2007 grand prix Where is it located?

follow the top radiator hose to the engine,it connects to the thermostat housing,remove the hose,and two bolts holding down housing

Jan 08, 2010 | 2007 Pontiac Grand Prix GXP Sedan

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