Question about 1996 Ford Mustang

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Temperature swings. I have a '96 mustang 3.8L V6. When leaving in the morning and the engine is heating up, the temperature guage will swing over almost to the 'H', then swing back almost to the 'C', then comes up to normal and stays there. I changed the thermostat and coolant but still have the problem. Any suggestions?

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Make sure all the air is bled out of the cooling system they are bad about air being traped.There should be a bleed around the thermastat housing crack it open let engine run until normal temp and steady flow of coolant then tighten up and top off with coolant.

Posted on Sep 28, 2010

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