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Heat Shields RATTLING! Can I just take them off?

Discussion in '2nd Gen. Tacomas (2005-2015)' started by #sultanofsilver, May 30, 2019.

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  1. May 30, 2019 at 7:31 AM
    #1
    #sultanofsilver

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    #sultanofsilver [OP] Member

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    The long aluminum heat shields above the exhaust pipes are rattling and driving me crazy. About a good three feet of them. Is it possible to just take them off? There's two of them. Has anyone done this? Nuts seem to be rusted/frozen and the shield is just hanging by one intact rusted bolt.
     
    #sultanofsilver, May 30, 2019
    #1
  2. May 30, 2019 at 7:34 AM
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    NYCTaco52

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    NYCTaco52 Half man, half goat

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    Very possible to take them off. But then you run the risk of heating up other stuff that shouldn’t run that hot. And your interior cab getting hot during idle.
     
    NYCTaco52, May 30, 2019
    #2
  3. May 30, 2019 at 7:34 AM
    #3
    NYCTaco52

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    NYCTaco52 Half man, half goat

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    Cats run over 1,000 degrees on average, you don’t want that heat radiating into your cab
     
    NYCTaco52, May 30, 2019
    #3
  4. May 30, 2019 at 7:38 AM
    #4
    diabetiktaco

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    diabetiktaco Instalander

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    I think I have the same issue. There's a nut on them I tried to tighten down and it doesn't seem to help. It's driving me insane, it's like a low grunt.
     
    diabetiktaco, May 30, 2019
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  5. May 30, 2019 at 7:54 AM
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    Minimag95

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    Minimag95 Well-Known Member

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    The one over my drivers side cat was rattling for a while and it eventually fell off. No issues yet but I wouldn't mind replacing it if i can figure out the part number for it. Toyota parts diagrams are confusing. Anybody know the part number or even which diagram to look at? Ik its not the exhaust diagram.
    :threadjacked:
     
    Minimag95, May 30, 2019
    #5
  6. May 30, 2019 at 7:59 AM
    #6
    Minimag95

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    Minimag95 Well-Known Member

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    A lot of people will place a large washer in there to hold it on
     
    Minimag95, May 30, 2019
    #6
    SR-71A, Crow Horse, Toy4me and 1 other person like this.
  7. May 30, 2019 at 8:44 AM
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    TheDevilYouLove

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    TheDevilYouLove You can’t polish a turd, but you can polish a TRD

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    I took mine off 2 years ago and am still alive, truck has not caught fire.
     
    TheDevilYouLove, May 30, 2019
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    06Tacooo and 6 gearT444E like this.
  8. May 30, 2019 at 9:41 AM
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    diabetiktaco

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    diabetiktaco Instalander

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    Not a bad idea..thanks for that..
     
    diabetiktaco, May 30, 2019
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  9. May 30, 2019 at 9:42 AM
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    Jeffch

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    Jeffch Well-Known Member

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    I used a hose clamp maybe a couple of them run together to get the diameter.
    Been on for years.
     
    Jeffch, May 30, 2019
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  10. May 30, 2019 at 9:48 AM
    #10
    Minimag95

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    Minimag95 Well-Known Member

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    I think they're talking about the ones above the exhaust, attached to the underside of the cab with a couple nuts. Technically they're called "Floor Insulators". The heat shield on the drivers side cat that's held on with a clamp that goes around the exhaust is something different but my truck doesnt have that anymore either lol.
     
    Minimag95, May 30, 2019
    #10
  11. May 30, 2019 at 10:09 AM
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    DirtTaco

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    DirtTaco Well-Known Member

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    The one that rattles for me is inaccessible without removing exhaust which is so rusted it will be a big job.. annoying.
     
    DirtTaco, May 30, 2019
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  12. May 30, 2019 at 10:17 AM
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    Minimag95

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    Minimag95 Well-Known Member

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    Yeah I was thinking that about mine too. None of the nuts were holding it up anymore and it was just wedged between the exhaust and the underside of the cab, I didn't think there was any way for it to fall off but sure enough it fell off on the trail a couple weeks ago. I think im just gonna stick some of this up there instead of replacing it. Don't feel like dealing with those rusted nuts.
    $26 Thermo-Tec 13575 Adhesive Backed Aluminized Heat Barrier, 12" x 24"
    https://www.amazon.com/Thermo-Tec-1...e+heat+shield&qid=1559236523&s=gateway&sr=8-3
     
    Minimag95, May 30, 2019
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  13. May 30, 2019 at 12:15 PM
    #13
    muddog321

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    muddog321 Well-Known Member

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    As many have heard rattles underneath their trucks look at the exhaust heat shields as they corrode and the holes gets too big so you have to take the nut off and add larger washers to hold them up. I added 2 washers with upper most 1 with a larger hole to fit over the stud post first so next washer will lock the heat shield tight (when you have the nut off you will see what I mean). The catalytic converter under the drivers side on 4x4 have a 2 piece heat shield and those usually have the 2 bolts rush out and then a thin muffler clamp (2 1/2 inch) holding it on. It protects the front driveshaft and boot. I used a 2 3/4 stainless hose clamp instead of a muffler clamp which looked like overkill as a lightweight shield and the 2 bolts hold it clamped around the cat.
     
    muddog321, May 30, 2019
    #13
    Crow Horse likes this.
  14. May 30, 2019 at 12:38 PM
    #14
    EnonEye

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    EnonEye Well-Known Member

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    glad he could help :cheers:
     
    EnonEye, May 30, 2019
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  15. May 30, 2019 at 4:22 PM
    #15
    casey2012

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    casey2012 Well-Known Member

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    i took mine off 2 years ago could not stand the rattle i never had any issues with heat
     
    casey2012, May 30, 2019
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  16. May 30, 2019 at 5:33 PM
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    avnut48

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    avnut48 Member

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    This is the diagram I used when I was looking for part numbers for those shields.
     

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    avnut48, May 30, 2019
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  17. May 30, 2019 at 5:39 PM
    #17
    Minimag95

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    Minimag95 Well-Known Member

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    Thanks man! I did some searching after posting that and I was able to find it. Guess i didnt look hard enough. But i dont really want to pay the 50 bucks lol i ended up ordering an adhesive heat shielding thing from Amazon that I'm gonna put in its place. It's like the same kinda stuff that car guys use to line their trans tunnel or engine bay
     
    Minimag95, May 30, 2019
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  18. May 30, 2019 at 7:12 PM
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    HillJackJDS

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    HillJackJDS Well-Known Member

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    My 2008 2.7L Base Tacoma got to rattling, but I was fortunate, mine were not aluminum. I rolled out my MIG, hit the missing bolt hole with a quick tack and my problem was immediately solved.
     
    HillJackJDS, May 30, 2019
    #18
  19. Aug 7, 2019 at 8:11 PM
    #19
    Kolter45

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    Kolter45 Well-Known Member

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    i just replaced 2 bolts for mine as well. the rattle sucked & it was after I added the OEM skid!
     
    Kolter45, Aug 7, 2019
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  20. Aug 7, 2019 at 8:21 PM
    #20
    Notoneiota

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    Notoneiota Well-Known Member

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    Holy shit snacks! I was about to call bullshit on this (just seemed excessively high) until I did a quick Googly search...
    Screenshot_20190807-221837_Chrome.jpg
    They don't even function until 400 to 600 degrees and operate between 1,200 and 1,600 F. Sweet Cheebus that is hot!
     
    Notoneiota, Aug 7, 2019
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