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Low Fuel Light question...

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Old Jul 10, 2014 | 09:22 PM
  #1  
fatboy1729's Avatar
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Question Low Fuel Light question...

My low fuel light stays on all the time now on my 06 Fatboy. Gas tank is full. Any ideas what it might be? Thanks in advance...
 
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Old Jul 13, 2014 | 06:01 AM
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Does the analogue gauge also show low all the time. If so it's the float on the sender unit getting stuck. I had a similar issue on an 07 RK. Except mine showed full all the time. It was still under dealer warren try so I let them sort it out. The mech said it wasn't uncommon as when filled sometimes the float gets wedged on the inside of the tank. He just bent the lever slightly and I never had another problem.
If you let it get real low, the same kind of thing may have happened.
If not it could be the variable resistor on the sender unit, but I couldn't say for sure only thinking out loud.

Let us know how you get on.

Good luck
 
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Old Jul 13, 2014 | 06:11 AM
  #3  
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It may be a mechanical issue, but before I went further I would disconnect the positive battery cable, clean and reconnect, then cycle ignition twice slowly. Also clean and tighten the negative cable. This may reset the system.
 
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Old Jul 13, 2014 | 06:35 AM
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As above, what does the gauge say. Mine is intermittant. Replacing the sender fixed it but it crapped out again. If the gauge says lays low the light comes on, issespective of the actual fuel level.
 
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Old Jul 13, 2014 | 07:13 PM
  #5  
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Originally Posted by WildBill2566
Does the analogue gauge also show low all the time. If so it's the float on the sender unit getting stuck. I had a similar issue on an 07 RK. Except mine showed full all the time. It was still under dealer warren try so I let them sort it out. The mech said it wasn't uncommon as when filled sometimes the float gets wedged on the inside of the tank. He just bent the lever slightly and I never had another problem.
If you let it get real low, the same kind of thing may have happened.
If not it could be the variable resistor on the sender unit, but I couldn't say for sure only thinking out loud.

Let us know how you get on.

Good luck
That's a very good place to start.
 
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