[Crazymonkeymech]

I am replacing my fuel tank and thought this would be the perfect time to fix the fuel gauge. I removed my sending unit and it was corroded. I ordered a new one and am still waiting for it to come in. Ive heard the needle can be pegged because the gauge needle is stuck or because there is a wiring problem. What can i check to make sure the wiring is good before in install the new sending unit? I have a 74 nova.

[T-bucket23]

make sure the ground wire is still attached to the frame. This is a common issue

[eloc431962]

I would check the wires first. As stated could be the ground wire.
Or just a bad sending unit. JMO





Cole

[MRTS33]

Sounds like the sender wire is shorted out. Check to see if there is a bare spot on the wire that is shorting out.

[35terraplane]

Originally Posted by Crazymonkeymech

I am replacing my fuel tank and thought this would be the perfect time to fix the fuel gauge. I removed my sending unit and it was corroded. I ordered a new one and am still waiting for it to come in. Ive heard the needle can be pegged because the gauge needle is stuck or because there is a wiring problem. What can i check to make sure the wiring is good before in install the new sending unit? I have a 74 nova.

Just hook the wire up to the sending unit, make sure the ground wire is grounded good, move lever up and down if needle moves, wire and gauge are good, cut sender float to fit if it 's not the right length and install. If when you move the float up and down check wire with an ohm meter if that checks good the needle is either stuck or the gauge is junk.

Later 35 terraplane