The Dodge Challenger Message Board

Just had gauges rebuilt from red line fuel gauge still inop.

any ideas?

Make sure it is not a problem with your sending unit or wiring, and if it is actually the gage, send it back to them and tell them to fix it.

Likely your wiring. Be careful not to fry anything when testing. Isolate and check the main supply to the dash along with your ground(s).

There is a wiring diagram somewhere here on the board for assistance.

Did they check the 5 volt power supply mounted on the back of the dash that powers the fuel gauge?

I have posted the tests to find fuel gauge problems on here a couple of times. You should be able to find them using the search facility.