Duramax Diesels Forum Truck of the Week
  #1  
Old 08-07-2011, 12:21 AM
towboattrash34 towboattrash34 is offline
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Default Water in fuel Light ??? What to do ?

I have a water in fuel warning light on.....reset it 2x's changed fuel filter.. still on.... 3/4 tank of fuel what needs to be done ?? Still running good.
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Old 08-07-2011, 07:07 AM
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First one Ive ever heard of that actually worked. Sure the sensor isnt bad?
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Old 08-07-2011, 07:36 AM
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Was there actually water in the bottom of the filter? Unplug the harness and put a jumper on it.
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Old 08-07-2011, 07:41 AM
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drain filter into a glass container. let it sit for a bit and see if water seperates from it
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Old 08-07-2011, 01:33 PM
towboattrash34 towboattrash34 is offline
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Im on the tug boat for 3 more weeks..... so it will be awhile before i can check anything..... just getting ideas so when i can have it checked out. Had to leave @ 3am so did not have time to check anything else..... Thanks..
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Old 08-07-2011, 01:43 PM
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Quote:
Originally Posted by Vrabel View Post
drain filter into a glass container. let it sit for a bit and see if water seperates from it
This.

Water is heavier, it will sit at the bottom.

1) Get clear bottle, a plastic water bottle works.

2) Loosen plastic nut at top, this is the bleeder. Use a wrench, not a flat blade screwdriver.

3) Hold bottle at bottom nipple, then twist nipple fins until fuel flows.

4) Fill bottle then shut nipple drain.

5) Pump the round metal pump on top until fuel starts to flow out the top.

6) Tighten bleeder.

7) Pump the pump until it feels hard.

8) It will take about 1 minute for the truck to start sometimes. Like 60 seconds - a long time. Be patient.
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Old 08-07-2011, 01:51 PM
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But it's probably just a loose wire.
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Old 08-08-2011, 12:43 AM
towboattrash34 towboattrash34 is offline
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Thanks will check it out......
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Old 08-08-2011, 12:51 AM
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Pretty sure the switch is normally open. Mines unplugged and laying in the driveway, no WIF light on.
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Old 08-08-2011, 11:26 AM
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Quote:
Originally Posted by Burn Down View Post
Pretty sure the switch is normally open. Mines unplugged and laying in the driveway, no WIF light on.
correct, unplugged the WIF light i out. Put a jumper in and the light will come on.
check to see if wires are shorted together
check that float thingamajig it up when it should rest to bottom of sensor
could be sensor itself
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