fuel gauge don't work right... IS THERE A WAY TO CALIBRATE IT ??

[Highbanked Hauler]

 74 Challenger,   EVERYTHING has been replaced.  New gas tank and new stainless steel sender unit. Complete new wiring harness,whole car and the gas gauge doesn't work so I put a new gauge in it and it STILL DOESN'T WORK..   I grounded the sender unit and the gauge panel figuring that might be it,still nothing.  Ideas ?   Is there a way to diagnose  the problem ??

[70 sublime]

Did you try a test light on the wire under the car by the gas tank just to make sure you have power that far ?
(when all the wires have been apart just to make sure)

[Highbanked Hauler]

Did you try a test light on the wire under the car by the gas tank just to make sure you have power that far ?
(when all the wires have been apart just to make sure)

    Do you mean the blue wire that presses onto the sender for the gauge ? There is no power going to it is there ? I checked it with a volt meter and nothing.

[70 sublime]

The wire at the tank is a grounder wire so you should see something there
Back track till you find where there is power

[Dmichels]

try grounding the wire going to the sender if the gauge moves then the tank is not grounded

[Highbanked Hauler]

Did you try a test light on the wire under the car by the gas tank just to make sure you have power that far ?
(when all the wires have been apart just to make sure)

    Do you mean the blue wire that presses onto the sender for the gauge ? There is no power going to it is there ? I checked it with a volt meter and nothing.

      I never look for the small stuff first   dumber than dog crap here.  I DIDN'T CHECK THE FUSE. now it works fine.

[70 sublime]

 

[Nacho-RT74]

Can't tell on E bodies, but if your fuel gauge didn't work due a blown fused, then you wouldn't get any gauge working...

[Highbanked Hauler]

Can't tell on E bodies, but if your fuel gauge didn't work due a blown fused, then you wouldn't get any gauge working...

   Non rally dash, the temp gauge still doesn't work but the amp meter has right along for obvious reasons but I can't figure out what else is on that circuit.

[Nacho-RT74]

Ammeter is an independent gauge from the rest.

But fuel temp and oil shares same circuit ( everyone from same voltage limiter ) so same fuse.

[Highbanked Hauler]

 Is there a way to calibrate the gauge ?   It is hooked up and the sender is grounded and the gauge reads full and the tank shouldn't be more than half full ...

[poppa]

http://www.dodgecharger.com/forum/index.php/topic,57971.0.html

may help??? This is a widespread problem. Good luck!