Fuel sender bad?
Thread Starter
Pro
Joined: Jan 2007
Posts: 589
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Fuel sender bad?
My gauge is pegged past full. When I ground the tan sender wire at the tank the gauge goes to empty.. Gauge is good sender is bad?.
Is there anything I need to check, anything I can do the the sender?
If it is the sender do I have to drop the tank?
Is there anything I need to check, anything I can do the the sender?
If it is the sender do I have to drop the tank?
Pro
Joined: Oct 2004
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From: Honolulu Hawaii
Former Vendor
Joined: Aug 2006
Posts: 76,656
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From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Merlin,
When you ground out the sender it should peg full! It sounds to me like a grounded out unit and very possible you do not need a sender.
You not have to remove this tank to get to the unit. There is a locking camber ring that holds it in place and an o-ring between the sender and the tank.
You can test the unit with an ohms meter with 0 being empty and 90 being full. If you remove the wires from the sender and then test the output by having someone raise and lower the float. If you are not getting the correct ohms readings, then remove and replace.
Willcox Inc
When you ground out the sender it should peg full! It sounds to me like a grounded out unit and very possible you do not need a sender.
You not have to remove this tank to get to the unit. There is a locking camber ring that holds it in place and an o-ring between the sender and the tank.
You can test the unit with an ohms meter with 0 being empty and 90 being full. If you remove the wires from the sender and then test the output by having someone raise and lower the float. If you are not getting the correct ohms readings, then remove and replace.
Willcox Inc
Race Director
Joined: Jun 2000
Posts: 10,023
Likes: 657
From: FL
Grounding the tan wire will get 0 ohms (bypassing the rheostat in the sender) and you should get empty. A past full needle indicated infinte ohms (basically an open circuit). Mine used to do this when the ground wire (black) from the sender was loose. I just cleaned that connection and good to go.
