Fuel gauge woes...

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GDL

GDL

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So either my sending unit died, my gauge died or the wiring between the two died. What's the proper trouble shoot procedure to figure out if I'm sopping the tank or wiring up an after market gauge into my existing gauge pod?

72 dart swinger 340/727 combo.
 
There is a spring clip that attaches between the line coming out of the tank and goes across a short piece of rubber line and onto the steel line. That is a ground strap. Check it to make sure that you have a good ground.
I had the same trouble, but mine turned out to be the circuit board behind the speedo. The brass terminals were letting go.
 
I believe you're Dart is build like my 72 Demon. If so , remove the drivers kick panel and locate the connection that goes to the rear of the car and unplug it . Locate the wire that goes back to the fuel sender. Use a jumper wire and short the side that goes to the gauge momentarily (5-6 seconds) with the ignition switch in run position . The fuel gauge should rise toward full. Do not leave it connected long. If gauge rises it is probably ok.
Using an ohm meter connect it to the wire going to the sender. There is a page on this FABO site that will give you the reading approximate to the fuel level in the tank. If no reading check the sender ground. There should be a strap by the senders that spans the short hose connecting the sender to the fuel line. Make sure it is making a good connection. A lot of these problems are ground related.
Yote
 
If it's working at all yes but you still need to be sure the grounding strap is making good contact on both of its ends first if you get no initial reading from what I have suggested. Further testing of the sender will probably require removal of the sending unit.
Yote
 
Yote said:
I believe you're Dart is build like my 72 Demon. If so , remove the drivers kick panel and locate the connection that goes to the rear of the car and unplug it . Locate the wire that goes back to the fuel sender. Use a jumper wire and short the side that goes to the gauge momentarily (5-6 seconds) with the ignition switch in run position . The fuel gauge should rise toward full. Do not leave it connected long. If gauge rises it is probably ok.
Using an ohm meter connect it to the wire going to the sender. There is a page on this FABO site that will give you the reading approximate to the fuel level in the tank. If no reading check the sender ground. There should be a strap by the senders that spans the short hose connecting the sender to the fuel line. Make sure it is making a good connection. A lot of these problems are ground related.
Yote
Click to expand...
^^^^ what he said..... The floats are also known to corrode and sink too
 
With a test light unplug the wire off the sender at the gas tank. Turn the key to the run position, attach the test light to a good ground, touch the other end to the wire. Gas gauge should peg all the way to full. If so it's the sender, if it doesn't, it's in the wire or gauge.
 
Thanks for all the leads. I'll try to tackle this this weekend. We are short two guys at work so I'm doing 6-7 day work weeks
 
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