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Old 02-05-2013, 03:07 AM
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Engine: 2.4 Quad DOHC
What should be the normal water temp for a 2000 sunfire 2.4?

Just had the 2.4 built stock and need some info, Thanks
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Old 02-05-2013, 11:32 AM
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Typical operating temp should be around 190-195F, measured digitally from PCM via scan tool.
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Old 02-05-2013, 11:36 PM
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Thanks, mine was at 195 and started moving a few clicks above. Found out it was a warped Engine Coolant Water Outlet. Well, I purchased one and it has an o-ring but it looks as though it should have a gasket but I cant find a view of the assembly anywhere. Does anyone know?
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Old 02-06-2013, 10:57 AM
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It will run at the thermostat temperature (apparently 195 on yours, which is the most common factory thermostat temp) with airflow through the radiator. But if you are parked and there is no airflow, the temperature will start to rise, because the thermostat opens all the way but the radiator is still not wasting enough heat. Temp will climb until it gets to the fan-on temp, which is typically 220-225 range from the factory. So don't be alarmed about temps up to that range.
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Old 02-06-2013, 02:00 PM
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Quote:
Originally Posted by racin17 View Post
It will run at the thermostat temperature (apparently 195 on yours, which is the most common factory thermostat temp) with airflow through the radiator. But if you are parked and there is no airflow, the temperature will start to rise, because the thermostat opens all the way but the radiator is still not wasting enough heat. Temp will climb until it gets to the fan-on temp, which is typically 220-225 range from the factory. So don't be alarmed about temps up to that range.
Just a note - the later Quad 4's (94-95) and 96+ LD9 all have the t-stat located down at the pump/inlet, and for this reason is a 180F t-stat stock.

And yes, 190-195F is where they tend to cycle assuming good driving airflow. When sitting still it will continue to climb beyond until fan starts.
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Old 02-07-2013, 03:20 AM
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Model: Sunfire GT
Engine: 2.4 Quad DOHC
I installed the Engine Coolant Water Outlet late last night and let it run about 45min and it never got above 195, the water never circulated from the resevoir either. Is that normal? I have heard of the water getting locked somehow to where it wont circulate.
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Old 02-07-2013, 07:20 AM
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190-195 is normal. The overflow tank normally doesn't move unless you get the car really hot.
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