Temperature Guage won't go off cold

[Pacecar]

Restored my car with a new engine wiring harness. All guages worked before disassembly.  After re-assembly, the original temp guage doesn't work. Stays on cold. Goes hot when grounded.  Have changed out the temperature sender twice with no teflon tape. Just bought a repro fuel guage for the car and it doesn't work. Any suggestions as to what is wrong ?

[x66 714]

Sounds like you're missing a ground somewhere. Sometimes too much paint in the wrong place will cause that problem....Joe

[Pacecar]

All the other guages work though so I didn't think it would be a ground

[feastersss]

I had the same issue, new wiring, I had the leads reversed on the back of the gauge,I changed them around, works great now.....I used American Auto Wire for my new wiring harness!

[Pacecar]

Thanks - Will try changing the connections