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Would a loose fan/water pump belt on a 1983 ford f150 302 make the temp gauge go from normal to hot, bouncing back and forth?

3 Answers

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  • 4 years ago

    Yes, the belt being loose means the water pump isn't operating at 100%

  • Anonymous
    4 years ago

    It begs the question is the belt loose? It should be able to be deflected about 1/2 inch with thumb pressure in the middle of it's longest run. Do that first then consider replacing the thermostat.

  • Anonymous
    4 years ago

    Hi No that is the voltage control unit which needs to be replaced.

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