Greenie
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| posted on 2/7/11 at 03:25 PM |
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Dodgy Fuel Gauge
Right lads you have not let me down so far in the past and I need your help once more.......
Took the Indy out of the garage today to go for a run in the sun, when noticed that the fuel gauge was reading full, now I do know that was not
possible, unless the fuel fairy had been in over night.
As I trundled along the road I noticed that needle was up and down spasmodically, didn't worry to much because I knew I had enough fuel for the
length of the run I was about to complete.
As I went along the needle decided to stay well past the full mark, when I turn the engine off it goes back to the empty position and when I put the
ignition back on it goes flying over past the full position.
Had no trouble in the past....... Any ideas????????
Please help..,.. 
Regards Greenie
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HowardB
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| posted on 2/7/11 at 05:56 PM |
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best first guess would be a faulty earth,....
Howard
Fisher Fury was 2000 Zetec - now a 1600 (it Lives again  and goes zoom)
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adithorp
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| posted on 2/7/11 at 06:03 PM |
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Sounds like the wire from the gauge to the sender is touching/shorting to earth somewhere along the way.
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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jacko
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| posted on 2/7/11 at 06:14 PM |
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BANG
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Macbeast
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| posted on 2/7/11 at 06:35 PM |
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Best second guess is a short. If I short my sender live to chassis, ther gauge goes to full.
I'm addicted to brake fluid, but I can stop anytime.
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adithorp
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| posted on 2/7/11 at 07:48 PM |
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quote:
Originally posted by jacko
BANG
The wire takes full current when the sender unit is at full (0 resistance) anyway so it doesn't burn any thing out. There's enough
impedence in the guage to prevent it.
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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Greenie
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| posted on 4/7/11 at 07:33 PM |
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Cheers everyone much appreciated, multi-meter at the ready!!!!!!!!!!!!!!!!!!!!!!
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Greenie
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| posted on 31/7/11 at 05:06 PM |
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Need further help if possible, when I run a new wire from the tank to he gauge the same thing happens, checked the earth with meter and the seems ok,
I now suspect a faulty gauge, any ideas?
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