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Hood Scoop Water Leak

Discussion in '5th Gen 4Runners (2010-2024)' started by garoto, Apr 2, 2024.

  1. Apr 2, 2024 at 8:08 AM
    #1
    garoto

    garoto [OP] New Member

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    I recently installed a black OEM hood scoop on my ORP. The install was rather… easy and uneventful. I installed new oem gaskets matching my original hood scoop in positioning, and there are already marks on the OEM where the gaskets go. So again, fairly straight forward. Three clips and four nuts. So, easy.

    This morning after a rain I decided to check for leaks and my hood heat carpeting was damp. I decided to pour water on the hood scoop and sure it leaks.

    in some ways, it’s no surprise that it leaks. I didn’t think those gaskets were great when I saw them. Four rubber pieces and at the top, even with gaps in between them. And at the bottom just a long cushioned strip, not rubber (the rest are rubber).

    But I never imagined it would leak as much as it does.

    knowing what I know about how it’s installed I can probably think of a number of ways to prevent it from leaking.

    but I’m curious if anyone is willing to hose theirs down and see if your carpeting gets damp?

    Based on everything I know, mine was probably already leaking prior to the swap, but I never bothered to pay attention.

    Here’s what it looks like underneath. You can see from the dirt that my original one was sealed quite well but there’s plenty evidence of gaps and even dust making its way through.

    IMG_5909.jpg
    IMG_5910.jpg
     
    djwantke likes this.
  2. Apr 2, 2024 at 8:14 AM
    #2
    whippersnapper02

    whippersnapper02 New Member

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    I think the gasket is more of a insulator than a seal since the engine the engine compartment isn't sealed from water.
     
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  3. Apr 2, 2024 at 8:21 AM
    #3
    garoto

    garoto [OP] New Member

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    That’s a good point. If the hood scoop was real and allowed air, then it would naturally also allow water. It might be more of an insulator against scratching. But, weird to let it soak the carpeting like that.
     
  4. Apr 2, 2024 at 8:30 AM
    #4
    Trail Runnah

    Trail Runnah New Member

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    My 2013 Trail has the scooped hood, but did not come with the under hood insulation.

    I don't know if the newer ones come with it, or if it's still factory omitted from the scooped hood for this reason.
     
    garoto[OP] likes this.
  5. Apr 2, 2024 at 8:34 AM
    #5
    garoto

    garoto [OP] New Member

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    Since don’t have insulation, it would be fairly easy for you to check it out if you pour 1/4 water bottle on some of its corners.
     
  6. Apr 2, 2024 at 8:35 AM
    #6
    djwantke

    djwantke New Member

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    Hey OP
    I just pressure washed the 4Runner on Sunday I'm curious myself to check the dampness.
    I have an orp with hood scoop and with the carpet.

    I've seen recently chatter about hood scoop leaks it sounds like they all leak to an extent from factory.
    I can see staining on my insulated carpet from water.
    I'll get back to you
    Good luck
     
    garoto[OP] likes this.
  7. Apr 2, 2024 at 8:39 AM
    #7
    scottiezilla

    scottiezilla New Member

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    image.jpg Been pouring the past couple days
    Dry to the touch…who knows underneath but nothing visible or tangible to indicate waters getting in…plain old stock hood scoop, 16’
     
    garoto[OP] and djwantke like this.
  8. Apr 2, 2024 at 8:42 AM
    #8
    djwantke

    djwantke New Member

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    Clean that engine cover ! :p
     
  9. Apr 2, 2024 at 8:47 AM
    #9
    scottiezilla

    scottiezilla New Member

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    good riddance…lol I think I did once n it just revealed more crap the deeper I dove, or it had that weird lingering debris from insects trying to nest

    however
    As far as that goes, I love when people say “don’t mind the dirty…” in their pics
    A. It’s a truck
    B. I wish mine was dirtier due to fun but DE is well, Wayne’s World
    C. ITS A TRUCK
     
  10. Apr 2, 2024 at 8:52 AM
    #10
    garoto

    garoto [OP] New Member

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    It dries fairly quickly. Mine was damp this morning and was dry after a 15 minute drive to Costco. You’d gotta pour, give it 30 seconds. Then touch.
     
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  11. Apr 2, 2024 at 1:58 PM
    #11
    garoto

    garoto [OP] New Member

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    Bump - anyone able to do me a solid and pour some water on your scoop all around (primarily the front two most corners) and let me know if it seems in? Would greatly appreaciate it.
     
  12. Apr 2, 2024 at 8:53 PM
    #12
    garoto

    garoto [OP] New Member

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    Anyone willing / able? Thanks!
     
  13. Apr 2, 2024 at 9:06 PM
    #13
    Yobruhitsme

    Yobruhitsme New Member

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    lol wtf is this? They actually cut a hole for the fake hood scope?
     
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  14. Apr 2, 2024 at 9:07 PM
    #14
    backpacker

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    Falken Wildpeak 265/70R/17 load E
    OK, just a minute
     
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  15. Apr 2, 2024 at 9:07 PM
    #15
    McSpazatron

    McSpazatron New Member

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    Mine definitely leaks. The sound insulation has soap stains that have gone all the way through it from touchless car washes, and it’s also soaks into it after hand washing the car.

    I thought about sealing it, but a less than perfect sealant application might make water pool in any low spot along the cutout area. Not sure though since I havent taken a good look in that area. It’s probably better to let it drain through.
     
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  16. Apr 2, 2024 at 9:10 PM
    #16
    djwantke

    djwantke New Member

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    @garoto Hey buddy - I’m working out of town or I would do it for you tonight. I’m like glued to this forum at all hours LOL.
    I’m home tmro afternoon tho
     
    garoto[OP] likes this.
  17. Apr 2, 2024 at 9:13 PM
    #17
    garoto

    garoto [OP] New Member

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    lol, I thought the same thing! At least is a real, fake.
     
  18. Apr 2, 2024 at 9:13 PM
    #18
    garoto

    garoto [OP] New Member

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    Thank you! No worries, I appreciate it!
     
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  19. Apr 2, 2024 at 9:14 PM
    #19
    garoto

    garoto [OP] New Member

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    Thanks!
     
  20. Apr 2, 2024 at 9:15 PM
    #20
    Yobruhitsme

    Yobruhitsme New Member

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    The hole makes it one step closer to a pontiac ram air.

    I need to dig out the Noogle tube from the basement and attach to the hood scoop and air box
    upload_2024-4-2_22-18-45.png
     
  21. Apr 2, 2024 at 9:15 PM
    #21
    4runningMan

    4runningMan New Member

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    My friend’s 2022 has the carpet insulator and it’s very visibly stained from water intrusion from the scoop.

    In a recent forum post someone said if the truck is parked facing downhill, it has a greater tendency to leak into the engine compartment in rain.
     
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  22. Apr 2, 2024 at 9:16 PM
    #22
    backpacker

    backpacker New Member

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    If any leaked, it wasn't enough to make the hood insulation feel definitively wet. It was cold, though. Water sat pooled in the seam without appearing to soak through.
     
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  23. Apr 2, 2024 at 9:17 PM
    #23
    garoto

    garoto [OP] New Member

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    Good to know. Thanks. Those seals don’t seem to have the intent to prevent water. Too thin, lousy. They seem more like to prevent vibrations and scratches. The insulation on tail lights for instance, that’s the real deal. High density large piece of foam.
     
  24. Apr 2, 2024 at 9:20 PM
    #24
    garoto

    garoto [OP] New Member

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    Thank you for checking. Sometimes, it just hangs out on top of the insulation without penetrating and then slides away. And sometimes it can just penetrate. I think, it just depends on how and where it lands.

    if you pour, then open the hood and pay attention to the windshield/hood area, you may see water come out of the insulation or from the drainage of the hood.
     
  25. Apr 2, 2024 at 9:24 PM
    #25
    backpacker

    backpacker New Member

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    Most of what I saw was coming from the front and back of the hood. I didn't see any coming from the insulation, but it wouldn't have been very much anyway. Tomorrow I'll be starting a road trip in heavy rain, so that could be another data point. I don't see any discoloration from previous road trips in heavy rain. That doesn't mean water never gets in, though.
     
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  26. Apr 3, 2024 at 5:29 AM
    #26
    garoto

    garoto [OP] New Member

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    The seam of the hood scoop? Or down in the insulator after making it past the scoop?
     
  27. Apr 3, 2024 at 7:22 AM
    #27
    backpacker

    backpacker New Member

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    Everything I could see that didn't immediately flow off the hood was sitting in the seam of the hood scoop and not appearing to seep through and down into the insulation. When I opened the hood to look inside, most of it flowed off the hood's rear edge by the windshield wipers. The insulation on mine is fixed well to the hood and is quite flush on the front and sides. Small amounts of water that collect on its upper surface will probably come out the in the same area, but could conceivably drain out the front, too.

    Chances are, if I get any water penetration in actual use, it's a small amount that gets absorbed into the insulator and evaporates in the heat of the engine compartment.

    We'll see when I stop for gas this afternoon in the pouring rain.
     
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  28. Apr 7, 2024 at 10:46 AM
    #28
    garoto

    garoto [OP] New Member

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    Hey @djwantke - are you able to take that hose and scoop for a whirl? I went to the dealer to see some cars in their lot, and honestly, the way mine fits it’s identical to the rest of them so fairly certain they’re all gonna have the same behavior but trying to confirm.
     
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  29. Apr 7, 2024 at 11:18 AM
    #29
    djwantke

    djwantke New Member

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    Vehicle:
    2016 4Runner Trail Premium
    Bought brand new 2016 After May 2021: -Approx 3" lift/level: Bilstein 5100's, OME 2884 590lb 3" front lift springs, SPC UCA's, ICON 158506 2" lift rear coils, diff drop -Mickey Thompson Baja ATZ LT285/70R17 Load E -Mickey Thompson Sidebiter ll 17x9, 0 offset, 5 backspace -Pro Comp black spline lugs ^installed by 4WheelParts^ -New brakes and rotors by brake shop -4-piece ARB skid kit -Smittybilt 2" nerf steps -MBRP black exhaust tip, chopped OEM -Drivers side OEM FJ oh shit handle -All blacked out emblems -Blacked out roof rails -4x WeatherTech window rain guards -OEM custom rear mud flap deletes -KICK BACK MUD FLAPS 12" WIDE - BLACK TOP AND BLACK WEIGHT -FRAM EXTRA GUARD CA10835 engine air filter -1797 LED tricolor fog bulbs Yellow 3000K White 6000K Blue 15000K 28W 4000LM -Armour paint lower rear bumper -Front bumper high stage high clearance cut -Fenders cut straight across, pink reservoir sprayed black -4Runner Lifestyle sequential fog fangs -4Runner Lifestyle smoked taillight decals -Pedal Commander -Rear passenger cargo mounted 120v truck tire pump -4x Spidertrax 1.25" black aluminum wheel spacers -Yota Twins Paracord Hatch Strap sand camo -Teton Workshop hard anodized matte black aluminum shift knob -Ditch flood lights 4 LED 20w 1400lm w/ OEM hood mounts on OEM style dash switch -Backup flood lights under bumper 6 LED 18w 1500lm on OEM style dash switch -Body Mount Chop; cut, weld, paint -Fender mount chop, re-weld, paint -Fender Liner cut behind wheel (I cut liner in front of wheel clean off at top of viper cut) -Wheel well firewall hammering, painting ^done by Arc One Industries^ -valance cap trim -Agency6 Black Shackle Block 2" US Certified 6061 T6 CNC machined aluminum -DRT fab universal hitch skid -ACDelco inner tie rods, outer tie rods, bellows -Full Dr. KDSS switch kit -March 31 Behind grille 13-1/4" 32 LED light bar + wide-angle, eagle-eye lens 6000lm on OEM style dash switch -RAA Powder coated steel roof rack cargo basket, 1" side rails, 64" x 39" x 6", 250lb limit -roof gas can, water can, shovel -PEAKTOW PTT0063 Hitch Mount Cargo Carrier 51-1/2 x 17-1/2 x 4 inches 500 lbs. Capacity (trips only) -July/2023: purchased first needed SPC balljoint replacement kit - newly released, upgraded non-zerk sealed joints 25002 -July 15/2023: The Original Universal EZ Flares, 1". All four corners -Dec. 2023: removed bumper cover and crash bar, drilled frame, installed Apex Overland KDSS Recovery Points -Jan. 2024: SPC balljoint replacement kit - upgraded non-zerk sealed joint design 25002 -Feb. 3/ 2024: 4x KC Wire Hiders, for roof rack lighting Feb. 13/2024: New ditch lights, on new Rago Fabrication Extension brackets. 3inch Quad Row Amber Pods from LED-Club. 32W 3200Lm 16-LED Spot Beam. Replacing 3inch EVERGEAR clear lens ditch light pods w/ yellow lamix-x In progress: 4th, 5th, and 6th set of off road lights Electrical components and wiring purchased, not started -roof rack scene lighting - EVERGEAR ea. 1,350 lumens, 30w, 3-¾" round floods. Custom, side mounted w/ galvanized flat bar And -roof rack upper ditch lights - 3inch Quad Row Amber Pods from LED-Club. 32W 3200Lm 16-LED Spot Beam. Bar clamp mounted to front corners And -roof rack reverse amber pods / secondary hazard lights. 20W 2000Lm 2-LED Spot Beam. Bar clamp mounted to rear side And -roof rack F1 smoked chase light w/ lighting effects. Custom bolted to rear side -POR15 rust proofing line-up, 3-step process PAUSED until 70⁰ weather Bought, in the garage queue: -BlueFire 6-Circuit Fuse Block with LED Indicator & Protection Cover -Blue Sea Systems 100A Circuit Breaker w/ reset lever -Rust prevention •New can POR15, 2x Black Fluid Film, long spray nozzle attachments, 2x PB Surface Shield, 1x Chainwax •partially used POR15 Degreaser, Metal Prep Wanted - PerryParts or Wheelers bump stops, self fabricated limb risers (seasonal, removable), 1" body lift, powder coated center winch bumper w/ large bar (got no tss), rear steel bumper w/ tire carrier for an LT285 Kumho on steely, sliders, bolt on cat shields
    Sure thing bud, around 1pm
     
    garoto[OP] likes this.
  30. Apr 7, 2024 at 11:19 AM
    #30
    joshdub

    joshdub New Member

    Joined:
    Aug 28, 2020
    Member:
    #16386
    Messages:
    282
    Vehicle:
    2020 TRD ORP
    They leak with enough water. It's not a big deal. The rubber strip is more to prevent plastic on metal rubbing
     
    garoto[OP] likes this.

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