Faulty fuel guage

Technical questions and answers about the Mazda Bongo

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DonNorthStar
Apprentice Bongonaut
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Joined: Wed Aug 13, 2014 6:43 pm

Faulty fuel guage

Post by DonNorthStar » Tue Feb 16, 2016 10:58 pm

The needle on my fuel guage won't go up past half way, even after completely refilling the tank. Has anybody else ever had this problem? Is there anything that can be done? Any advice would be much appreciated! Thanks.
Bob
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Location: North Somerset

Re: Faulty fuel guage

Post by Bob » Tue Feb 16, 2016 11:01 pm

Common fault with the fuel gauge is the earth connection.

Easy fix and there's loads on here, a search should reveal all. :wink:

Yep, some tips in the Fact Sheet and there's this one:

https://m.youtube.com/watch?v=sYEPNy6PyOk
Take a torch, toilet roll, and tea bags.

https://m.youtube.com/watch?v=hcF9JSxkUSE
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BongoBongo123
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Re: Faulty fuel guage

Post by BongoBongo123 » Wed Feb 17, 2016 1:14 pm

Good documentation of a fairly common issue on this thread: (Literally a decent bit of thick wire and a few nuts and bolts/scrub down with emery paper/wet and dry to bare the metal surfaces for the earth connections.)

http://www.igmaynard.co.uk/bongo/forum/ ... 12&t=67112

Quite an easy fix if it is not sender unit related. Good luck.
They call me light foot.
winchman
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Location: St.Helens Merseyside

Re: Faulty fuel guage

Post by winchman » Thu Feb 18, 2016 6:51 pm

I have seen the actual sender showing high resistance so if the usual Earth method wont work take the sender out, run an earth from the base of the sender to the lid and it should cure it
Pics here as it wont let me up load?
http://s1270.photobucket.com/user/winch ... 2.jpg.html
http://s1270.photobucket.com/user/winch ... p.jpg.html
DonNorthStar
Apprentice Bongonaut
Posts: 7
Joined: Wed Aug 13, 2014 6:43 pm

Re: Faulty fuel guage

Post by DonNorthStar » Wed Jun 15, 2016 1:29 pm

Sorry, I never said thanks for the advice! It was exactly as you said. I just made an earth wire from the tank to the frame and it solved it. Easy!
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