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post #1 of 5 (permalink) Old 06-08-03, 11:07 PM Thread Starter
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Bizarre fuel reading

I've had a search on the Forums, and though there are some similar threads, I haven't found anything exactly like this.

At the end of a cruise yesterday, my fuel gauge was reading 3/4 full, although I had driven about 400km. When I went to the servo, it took 40 litres to fill up and the gauge went back to full. I then drove from Sydney to Newcastle and it is still reading nearly full. I am getting suss readings from both the fuel gauge and the trip computer, so I assume it is a problem with the fuel sender unit in the tank?

Any help appreciated.

Red ones go faster.....
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post #2 of 5 (permalink) Old 06-08-03, 11:19 PM
74 XB Fairmont
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Could be one of three things. As fuel guages work off resistance.

a) guage worn out in the dash
b) sender worn out (this is more than likely what it is)
c) deteriorated wiring

Check "B" first and then check "A" then check "C"

Mines a good one in my XB. As I have a fuel cell with a fuel sender my gauge works backwards! Full is empty and empty is full.


XB Fairmont (street car) 11.07@123.02mph.
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post #3 of 5 (permalink) Old 06-09-03, 12:34 AM
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As I have a fuel cell with a fuel sender my gauge works backwards! Full is empty and empty is full.
Jeez that's no good, you can't tell if your half full or half empty :)

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post #4 of 5 (permalink) Old 06-09-03, 01:05 AM
Two SC 61's = trouble
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post #5 of 5 (permalink) Old 06-09-03, 01:43 AM
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If it's a E-Series, then you need to check is the fuel sender connector in the boot. They start to become corroded and therefore show you having more fuel then you actually have.

Seeing that 2 out of 2 EA's we own have had this problem, I'd say 90% of all EA's are experiencing this problem now, and the later E-series cars are next as they get older
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