Question about 1994 Ford Ranger Supercab

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94 ford ranger temp rises and falls constantly

Has a new thermastat and new water pump

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Mine does the same thing. One thing I did was to clean out the cooling system. I removed radiator connections and filled/dumped water into the block several times. The amount of sludge was unbelievable! I also removed my heater core and cleaned it out - it too was full of sludge. Problem is much better now but still varies while driving.

Posted on Jun 16, 2009

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Does it ever get above 210 degrees F? If not, don't worry about it.

Posted on Dec 13, 2008

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