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1991 Ford F-250 Question: I have a water temperature gauge that is not working.

 

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sailboater, 4.9L 6 Cylinder, Indianapolis, IN, October 29, 2012, 15:38
 Rookie

The oil pressure and battery volt meter gauge work fine. I was told that these gauges are all on the same fuse. The heater works fine so I don't think its a bad thermastate. Any advice would be very helpful Thank You

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  • Medium-star Best Answer
    Herb Ackside October 29, 2012, 16:17
     Journeyman

    Check the coolant temperature sending unit on the engine, it might be unplugged or defective. You didnt say which engine is in your truck. If its a 4.9 6 cyl its near the last intake plenum runner, if its a V-8 its on the left side of the intake manifold near the distributor.

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  • Answer #2

    your.mechanic October 29, 2012, 20:00
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     Master

    hello sailboater, i would replace that CTS so you can be aware of your engine temperatures...

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