Auto meter trans gauge not working.

[potbss]

As soon as I start my truck the trans gauge needle jumps to 250 degrees, the Max temp on the gauge. The back light on the gauge works. I've had the gauge for about a year with no problems till now. Not sure if anyone else has had a similar problem. Not sure if its the sender or gauge. The sender is going into my auto trans and has a single wire on the end. Any help would be appreciated. Thanks

[7.3550Duty]

I would say your sender went out, replace that go from there. Not really anything can go wrong with the gauge itself

[potbss]

Do you know what the replacement part number is.

[7.3HeavyHauler]

should be able to locate one just about anywhere

[potbss]

Autometer has a couple listed on there website. I guess I can just pull the sender out and look.

[jermcd]

thats what i would do. good luck. other wise have your autometers been good?

[potbss]

I would like to just swap the sender all at once. I have the ultra lite gauges. So far no problem until now. Won't now if its the sender until I replace it. Gauge lights up and dims. Just reads 250 as soon as I start the truck. Even after its been parked overnight

[potbss]

Installed new sender and gauge is still not working. Turn truck on and gauge reads 250.

[7.3Lariat]

I would check all the wiring for the gauge. If that is in order then I would presume a broken gauge.

[ken6881]

sounds to me the wire is broken going to the sender or the gauge. Check it closely and if you can check the ohm at the gauge from a ground to the sender wire.