Temp gauge not working 71

[Vincent F.]

the plug on back of gauge has bright light power on pink, black ground, and dim light power on green going to sensor. any input would be greatly appreciated.

[Michael W.]

Re: Temp gauge not working 71

What happens if you touch the sensor wire to ground?

[John H.]

Re: Temp gauge not working 71

the plug on back of gauge has bright light power on pink, black ground, and dim light power on green going to sensor. any input would be greatly appreciated.

Vince -

Quick gauge function check - with the key "on", engine off, remove the connector at the sending unit - the gauge should "peg" to full cold. Then ground the terminal in the connector to the engine, and the gauge should "peg" to full hot. If that checks out, the sending unit is faulty.

[Vincent F.]

Re: Temp gauge not working 71

it shoots the needle all the way right(hot). Bad sensor you think?

[Michael W.]

Re: Temp gauge not working 71

it shoots the needle all the way right(hot). Bad sensor you think?

Yup, or badly installed. Should be nothing that might electrically insulate the sensor from ground, like teflon tape.

[Vincent F.]

Re: Temp gauge not working 71

the gauge moves just over the 100 degree mark then stops.

[John H.]

Re: Temp gauge not working 71

the gauge moves just over the 100 degree mark then stops.

Vince -

If that's the result of the test I noted in post #5, the gauge needs attention.

[Vincent F.]

Re: Temp gauge not working 71

thats resolved, Thanks all, I've got some other electrical issue questions for you'all.