Dual fuel tank problems
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Joined: Sep 2015
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Dual fuel tank problems
Ok guys so when the truck is off the fuel needle stays on full instead of dropping but when started it goes to the needle stopper past full. Is this a float problem or something similar and how can it be fixed?
Fleet Mechanic
Joined: Apr 2015
Posts: 1,264
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its a ground issue, or bad senders.
if it was a power problem it wouldnt read at all.
another thing it could be is the FSV.
(fuel switch valve)
both tanks in my 91 reaf full just like you said,
i changed the FSV, and it fixed the issue,
but my rear tank wouldnt function too, this is why i changed the FSV.
the OEM units run just about 275.
if it was a power problem it wouldnt read at all.
another thing it could be is the FSV.
(fuel switch valve)
both tanks in my 91 reaf full just like you said,
i changed the FSV, and it fixed the issue,
but my rear tank wouldnt function too, this is why i changed the FSV.
the OEM units run just about 275.
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