Fuel Filter Drain - Page 2

Fuel Filter Drain

This is a discussion on Fuel Filter Drain within the RAM 1500 Diesel Maintenance forums, part of the RAM 1500 Diesel Garage - RAM 1500 Diesel Mechanics Corner category; Be sure to turn turn on the ignition to run the fuel pump while draining. Prime the filter if you drain more than a couple ...

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Thread: Fuel Filter Drain

  1. #11
    Administrator 97hmcs's Avatar
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    Be sure to turn turn on the ignition to run the fuel pump while draining.

    Prime the filter if you drain more than a couple ounces of fuel.

    Drain the fuel/water separator filter when the “Water In
    Fuel Indicator Light” is ON.

    Within 10 minutes of vehicle
    shutdown, turn the filter drain valve (located on the
    bottom of the filter housing) counterclockwise to drain
    fuel/water, then turn the ignition switch to the ON
    position, and allow any accumulated water to drain.
    Leave the drain valve open until all water and contaminants
    have been removed. When clean fuel is visible,
    close the drain valve by turning it clockwise, and turn the
    ignition switch to OFF.

    If more than two ounces or 60 milliliters of fuel have been
    drained, follow the directions for “Priming If The Engine
    Has Run Out Of Fuel.”

    If priming is necessary:

    1. Add a substantial amount of fuel to the tank, approximately
    2 to 5 gal (8L to 19L).
    2. Press ignition switch twice without your foot on brake
    to put vehicle in Run position or turn fob to run position. This will activate the in
    tank fuel pump for approximately 30 seconds. Repeat
    this process twice.
    3. Start the engine using the “Normal Starting” procedure.
    Refer to “Starting Procedures” in “Starting and
    Operating” for further information.

  2. #12
    RAM Veteran RansRAM's Avatar
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    So I just did this and it's like the captain said, awkward location without a lift. I held a small plastic pail under the filter and turned the yellow screw counter clockwise and out came some water followed by a bit of diesel. The screw is held captive and pulling it down seemed to allow a bit more fuel to come out. It seemed there was a bit of water in there so I guess it was worth checking.
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  3. #13
    RAM Sr Member SerKel's Avatar
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    I have question regarding the Fuel/Water separator and the indicator light. If I were to replace that little plastic Phillips screw with the threaded plug that comes with Geno's garage fuel filter remover would there be to much water and fuel coming out? Removing tool = Geno's Garage » ?No Mess? Ram 1500 EcoDiesel Fuel Filter Change

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  5. #14
    RAM Sr Member RudolfDiesel's Avatar
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    I thought about this and the Geno threaded drain allows the full amount of fuel drain out of the filter slowly, rather than splashing when you remove the unit without doing so. I believe the yellow dohickey just let's whatever is sitting in the bottom of the filter, which is where the water sits. For anyone who I've seen comment on looking for water in their filter, I've never seen anyone say they've seem some in the drained fluid. I'm thinking it's in poorer quality or contaminated fuel at questionable locations rather than reputable fuel locations.
    Last edited by RudolfDiesel; 02-21-2016 at 07:53 PM.

  6. #15
    RAM Professor Bounty Hunter's Avatar
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    This is the first time I've seen directions to turn on the ignition to power the fuel pump while the water drain is open. Any water should be accumulated near the filters, not in the fuel line, so why is this necessary? Seems wasteful to me.
    2016 Laramie CC 6'4", Delmonico Red, GDE

  7. #16
    Administrator 97hmcs's Avatar
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    Quote Originally Posted by Bounty Hunter View Post
    This is the first time I've seen directions to turn on the ignition to power the fuel pump while the water drain is open. Any water should be accumulated near the filters, not in the fuel line, so why is this necessary? Seems wasteful to me.
    I quoted the procedure outlined in the owners manual. I think the purpose of powering the fuel pump is to force the water out of the separator.

  8. #17
    RAM Sr Member SerKel's Avatar
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    So, if you wanted to do some preventive maintenance (PM) at what mileage and/or months would you do it to avoid the “Water In
    Fuel Indicator Light”?

  9. #18
    Administrator 97hmcs's Avatar
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    Quote Originally Posted by SerKel View Post
    So, if you wanted to do some preventive maintenance (PM) at what mileage and/or months would you do it to avoid the “Water In
    Fuel Indicator Light”?
    There is no definitive answer since it depends solely on the quality of the fuel.
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  10. #19
    RAM Platinum Member Captainmal's Avatar
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    There's a guy running around with a fuel filter that has over 100,000 miles on it. To our knowledge, there has never been a "water in fuel" alert.

    Now that's a bit irresponsible but for him, it has worked. When I changed mine after something like 26,000 miles or so, there was no evidence of water in fuel as mentioned earlier.
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  11. #20
    RAM Guru Davemd's Avatar
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    Hot fuel is retuned to the tank all day .ln colder climates When things cool down at night condensation will form on any part of the fuel system that is exposed to air. Hence even if you purchase clean fuel and filter it on the way into the tank water can and will gather in the bottem. As a rule of thumb I try to fill my diesels up as much as possible before shut down at night to negate the accumulation of water in my fuel. If it's in a heated garages don't worry about it. I usually drop the water out of the filter every oil change,while it's on the hoist way easier.

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