temp guage not working right

[DawGoneIt]

Anybody out there have to fix a temp gauge that doesnt work?

 

[Retiredwarhorses]

How do you know it's the temp gauge? Could be the sender or the wire...bad ground. I've had all three issues at some time or another. But if a bad gauge, replace it.

 

[vitamink]

In what way is it not working?

Needle not moving at all? Incorrect temp?

I found a good TM that i can send you for diagnosing the cooling system...i didn't work for my above situation but it might help you...i can email it.

 

[ehinlein]

if you want to check out sender, below are the resistance readings (terminal to gnd) for sender. Just measure with the wire disconnected with an ohmmeter.

Temp 120 -2507 ohms
180 -1126 ohms
240 -562 0hms

At least you can rule that out. If good-see above. It's a connection. Those gauges can but rarely fail.