NAS 110 fuel light stays on after I fill it with gas. Replace the fuel pump? - Defender Source
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  #1  
Old April 28th, 2014, 06:11 PM
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Question NAS 110 fuel light stays on after I fill it with gas. Replace the fuel pump?

I just changed the damn thing like 4 or 5 years ago (limited driving) and now the fuel warning light stays on even after I fill the tank. The fuel lever sensor works fine, so does the pump, primes and runs great but the light stays on. Does it sound like I need to replace the pump again? sigh... Thanks for any help.
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Old April 28th, 2014, 06:37 PM
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There is a "low fuel unit", a little box of tricks that sets off the light based on the fuel level sensor. So if the gauge is working the problem is not at the tank end. Maybe a bad connection. You need to find the little box. Do you have a manual? Probably a loose connection as low fuel = high resistance.
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Old April 28th, 2014, 06:42 PM
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I had to replace the fuel sending unit on my wife's 1960 MGA and it was all about the ground connection. Maybe that's applicable here?
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Old April 28th, 2014, 06:48 PM
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If you look in the NAS110 workshop manual, there is a wiring diagram. Section 86, page 71.
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Old April 28th, 2014, 06:50 PM
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http://www.defendersource.com/forum/...7&d=1233336062
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Old April 28th, 2014, 07:10 PM
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Quote:
Originally Posted by Red90 View Post
I'll take a look, man you have all the links bro thanks!!

------ Follow up post added April 28th, 2014 04:12 PM ------

Thanks, but now the question is, where is that unit box? Behind the dash binnacle?
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Old April 28th, 2014, 08:26 PM
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I think it should be. Look at the diagram and follow the wire from the warning light. It Gould go to the box.
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Old April 28th, 2014, 08:53 PM
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Quote:
Originally Posted by Red90 View Post
I think it should be. Look at the diagram and follow the wire from the warning light. It Gould go to the box.


ok, thanks for the help I really appreciate it.
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