Question about 2003 Pontiac Montana

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Put a new thermostat in and now i cant drive 3 miles and it ges hot

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Possibly still air in the system or the thermostat is in backwards? Pointy end should stick out. If thermostat is installed properly and all air has been purged, can you tell me how car was working before changing thermostat?

Posted on Sep 11, 2010

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Its not the expansion tank you need to look at. Open the radiator cap when the engine is cold. Coolant should be right at the top. Was all the air bled from the system when these components were replaced? If the system has air in it, it will not effectively cool. Was the thermostat installed correctly? ( Put in backwards ). Electric rad fan? Is it operational?

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What would cause my 95 suburban temperature gauge to fluctuate?

If that bottom hose is cold, it sounds like the radiator itself is not circulating.

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2.5 turbo diesel overheating

you have to use the thermostat or the water never stops to cool off. the thermostat stops the flow of water cools it off the lets the cool water in the motor and then cools down the hot water and so on put in a new thermostat if it still does it you have a blown head gasket

May 11, 2012 | Ford Ranger Cars & Trucks

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I have a 92 Acura Legend L V6 engine. My acura had been running hot until I put a brand new radiator on it, I drove the car for appro 40 miles one way and back, still didn't run hot. The car heater...

Thermostat improperly installed. (backwards) Or possibly you could have a blown head gasket and a bad thermostat at the same time. The head gasket could be letting exhaust gasses into the cooling system. A bad (stuck open) thermostat could "mask" this problem by allowing the coolant to circulate through the radiator when it is not supposed to. Thus, installing a new thermostat would trap the exhaust gasses in the cylinder head and cause the overheating.

Feb 05, 2011 | Acura Legend Cars & Trucks

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Heater problem:- LR Disco 1996

Having same problem with mine. I am replacing the thermostat tomorrow to see if that works. Put a piece of cardboard in front of the radiator. Drive down the highway a few miles in the cold weather. If heater warms up, replace the thermostat and you should be good to go.

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Runs hot at 70

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1 Answer

1995 toyota 4runner overheating

I have a 95 toyota four runner and it keeps running hot , where is the thermostat.

Jul 25, 2008 | 1995 Toyota 4Runner

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