Have a 2009 KW T800 driver side fuel tank is unused do to a crack, and has had the cross feed turned off and hoses removed and capped.
But the sending unit is still wired / causing a false reading. I unplugged the unit but then I got an empty reading even with the other tank full.
How do I bypass this?
Fuel tanks VS fuel gauge
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by EricS., Oct 23, 2020.
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Does a 09 not have two gauges like a 10. If so just plug it back in and let the little yellow light flash on bottom of second gauge.
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If you want a working gauge, the sending unit will have to be in the working tank. Otherwise, just leave it unplugged and keep track of your fuel burn.
Dino soar, spsauerland and BoxCarKidd Thank this. -
magoo68 Thanks this.
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Which tank is the sender in?
TBH, never saw a truck with two fuel gauges before.91B20H8 and BoxCarKidd Thank this. -
You are correct as usual that he should double check what he has before posting. The last 6 of the vin also gives some people the ability to help more.Dino soar, spsauerland and AModelCat Thank this. -
Dino soar and spsauerland Thank this.
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If the dead tank will not be repaired any time soon, the 2 sending units wires could be combined going to the live tank. ( Use real weatherproof connectors, not some crimp on crap ). Both gauges would then read the live tank & sending unit.BoxCarKidd Thanks this. -
Okay ... so more info ...the truck is a 2009 T800 Kenworth quad axel dump truck. With the c13 cat , last 7 of vin R992628.
It has a 75gal on the driver's side and a 100gal on passenger side.
The driver's side is unused and has no hoses hooked up (they are capped off) and no sending unit only a over fill / expansion hose
When the main tank is full I'm lucky to read 5/8 full .
Tank seems to be correctly oriented and not rolled back.
Thinking the sending unit float gets hung up somehow??
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