Question about 1994 Ford Ranger Supercab

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94 Ford 4.0L Thermostat Problem?

I've had the truck for nearly 5 years now, and around year two of ownership I began having problems with it over heating.. Oddly enough replacement of the thermostat fixes the problem, but I've gone through seven or eight in the past four years..

I honestly have no idea what would cause them to need replacement so often, but it usually happens when the weather changes, from spring to summer or fall to winter.

Any assistance would be most appreciative, thanks in advance.

-J

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Hmmm,

That's a strange problem.
Do your run antifreeze all year round? Or water in the summer and antifreeze in winter/fall?

One suggestion I can make is try replacing the thermostat with one of a lower temp. I believe OEM thermostat's for your truck open at 190 try using one that opens at 165 or so, less heat means less wear and tear. Either way you should not be eating up thermostat's like that.

Posted on Jul 01, 2008

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