fuel gauge or sending unit

Ferd · Dec 14, 2017

The fuel gauge on my 2240 jumps to full when the ignition is turned on - doesn't matter if the sending unit is connected or not. Would I be correct in assuming the gauge is bad?

Bob Bancroft · Dec 14, 2017

No. With key on, sender disconnected, with the sender wire from the gauge grounded, the gauge should peg one way, then peg the other way when not touching anything. Try it. That's probably what you'll get.

4520BW · Dec 14, 2017

Bob's got it covered!

Mike Groom · Dec 14, 2017

If you ground it and it reads full,you either have a sending wire that has worn through and grounded out or a defective sender in the tank.You can check the wire by unhooking it on both ends and putting a jumper wire between the gauge and the sender,if it reads O.K. you need to replace the wire to the gauge.

fuel gauge or sending unit

Ferd

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Bob Bancroft

Well-known Member

4520BW

Well-known Member

Mike Groom

Well-known Member

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