Temperature sensor exploding

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SQ - 05 Jun 2005 08:20 GMT

96 Mazda 626, 2.5L auto, 112K miles.

The temperature gauge sensor is exploding as soon as it's plugged in.
With a fairly loud crack, and it breaks in half. I thought the first
sensor was bad, got another one, and it did it again. The car was cold
and ran for just a few minutes if that. There is obviously an
electrical problem. Please help.

PS It's not the temperature sensor but the sensor for the temp. gauge.
It's completely dead.

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Mike Walsh - 05 Jun 2005 17:27 GMT

Maybe the gauge is shorted. The gauge is wired in series with the sensor. If the gauge is shorted there will be too high a voltage on the sensor.

> 96 Mazda 626, 2.5L auto, 112K miles.
>
[quoted text clipped - 6 lines]
> PS It's not the temperature sensor but the sensor for the temp. gauge.
> It's completely dead.

Signature

Mike Walsh
West Palm Beach, Florida, U.S.A.

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KG - 06 Jun 2005 13:10 GMT

I agreed, it sure sounds like a short somewhere in the circuit.

>Maybe the gauge is shorted. The gauge is wired in series with the sensor. If the gauge is shorted there will be too high a voltage on the sensor.
>
[quoted text clipped - 8 lines]
>> PS It's not the temperature sensor but the sensor for the temp. gauge.
>> It's completely dead.

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ed - 06 Jun 2005 18:08 GMT

Did the sensor ever work? What lead up to you needing to change the sensor?
Any wiring work done recently?

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