2001 SAN engine temperature gauge: Needle location when off and cold 140 degrees?

[psuchaz]

My temperature guage sits on 140 degrees when the boat is off and cold. See pic below It fluctuates around 160 when running. Is the fact that the guage rest on 140 when cold a sign that the guage maybe faulty ? Or could it still be the sending unit or something else. Thanks

[psuchaz]

Pic of Guage when boat is off and cold

[Viper_Freak1]

I have the same issue. I think I have a faulty sending unit, but I haven't gotten around to replacing it yet. Did you ever find a fix?


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[drfong]

My temperature gauge also gets stuck at a similar spot when the ignition is off and the engine is cold. However it goes back to the bottom/cold when the ignition is on and the engine is running/cold.

[NautiqueJeff]

The gauges will hold the last reading when the ignition is turned off. Tachometer will also show 700 with the key off.

I bet if you turn the key to on (but don't start the engine) once the engine has cooled completely, the tach will go to zero and the temp gauge will go to full cold.