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Leaking Cap or Tailgate

Discussion in '2.5 Gen Tundras (2014-2021)' started by MULLI63, Jan 21, 2023.

  1. Jan 21, 2023 at 8:15 AM
    #1
    MULLI63

    MULLI63 [OP] New Member

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    Southern California
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    2015 Tundra Platinum, SnugTop Shell, Gray
    Bilstein 5100 all four corners - front at top setting Ready Lift 1” rear block 295/70R18 Falken Wildpeak Method Roost R18 Under Seat Storage Boxes - Rear Seats - see post LED Interior Lights LED Mirror, Back-Up and License Plate Lights Added Auxiliary Fuse Box and Battery Switch Plasti-Dip Chrome Mirror Covers and All Badges to Black WeatherTech Bed/Tailgate Liner Replaced tailgate strut Working On Modifications: Add Oh Sh!t Handle To Driver Side A Pillar LED Head and Fog Lights
    We had some ongoing rain here in SoCal. A lot for us here. When I opened the SnugTop and tailgate I had water in the front left (driver) side corner of the bed. Could have come from anywhere as my driveway is sloped a bit back to front and a little right to left.

    As I was exploring possible water entry points I noticed that there was an opening between the top of my tailgate and the truck bed. It’s pretty significant. 1/2” or more at the top and then tapers until the tailgate and the back of the bed meet. That’s around the where the catch sticks out from the bed for the tailgate to lock.

    I can shine a flashlight and clearly see the light and my fingers from the back when the tailgate is closed. Through the gap between the tailgate and the rear brake lights.

    It’s the same both sides.

    Is this common? Seems like the tailgate should seal all the way to the top against the bed.
     
  2. Jan 23, 2023 at 1:58 PM
    #2
    TTund16

    TTund16 New Member

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    Mine has a good gap there!
     
  3. Jan 23, 2023 at 2:17 PM
    #3
    KNABORES

    KNABORES Elitist forum troll

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    The tailgate is to keep stuff from falling out. It’s not sealed like an interior door. It’s not weather proof. You can add some weatherstripping and a tailgate gap cover to help Seal it up better.
     
    mountainpete and TXBrit like this.
  4. Jan 23, 2023 at 2:56 PM
    #4
    mountainpete

    mountainpete Explore more

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    Function before sparkle.
    Totally normal.

    In my 20 years of owning trucks with caps I have tried all kinds of different ways of sealing it. In my experience, the combo of a floor gap cover and a surround cover gets as close as possible to a full seal.

    I use this and it works: https://www.rokblock.com/

    [​IMG]
     
    TTund16 and bulldog93 like this.
  5. Jan 23, 2023 at 7:49 PM
    #5
    OIF2VET

    OIF2VET New Member

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    GREAT idea for a fix on that rear bed seal issue. May have to try this one out on my truck. Although I have a tonneau cover and not a cap but do experience water in small amounts in the forward area of my bed. Weather seal has helped mitigate some earlier water spotting, however, I don't live in CA and have not had to deal with the deluge that the OP has. Talk about the ultimate water sealant test...
     
    Last edited: Jan 23, 2023
  6. Jan 24, 2023 at 6:02 AM
    #6
    MULLI63

    MULLI63 [OP] New Member

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    Vehicle:
    2015 Tundra Platinum, SnugTop Shell, Gray
    Bilstein 5100 all four corners - front at top setting Ready Lift 1” rear block 295/70R18 Falken Wildpeak Method Roost R18 Under Seat Storage Boxes - Rear Seats - see post LED Interior Lights LED Mirror, Back-Up and License Plate Lights Added Auxiliary Fuse Box and Battery Switch Plasti-Dip Chrome Mirror Covers and All Badges to Black WeatherTech Bed/Tailgate Liner Replaced tailgate strut Working On Modifications: Add Oh Sh!t Handle To Driver Side A Pillar LED Head and Fog Lights
    I will check it out. Thanks for the advice.

    Thanks to all the others for your comments! Love this site.
     
  7. Feb 4, 2023 at 12:38 PM
    #7
    Kestrel2020

    Kestrel2020 New Member

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