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vacuum hoses size

Discussion in '1st Gen. Tacomas (1995-2004)' started by JustADriver, Oct 23, 2021.

  1. Oct 23, 2021 at 12:59 AM
    #1
    JustADriver

    #1
    JustADriver [OP] Well-Known Member

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    96 Tacoma 3.4L V6

    I want to replace all my vacuum hoses.

    The several smaller ones I think are 3.5mm ID. 3mm tubing won't go on, and 4mm tubing is not snug. I had bought some 3.5mm online and it fit well, but I need to get more. I'm just super confused on how it can be 3.5mm because everything I've read on this forum and elsewhere says they're 4mm and definitely metric. I don't get it.
     
    JustADriver, Oct 23, 2021
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  2. Oct 23, 2021 at 1:12 AM
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    Rastopher

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    Rastopher Well-Known Member

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    I found it very hard to find out as well, so you’re not alone in that. Wish i had more info Good luck!
     
    Rastopher, Oct 23, 2021
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  3. Oct 23, 2021 at 5:23 AM
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    Bivouac

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    Bivouac Well-Known Member

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    Remains to be seen I bought the tires and wheels the rest came along
    For what it is worth I just bought 100' rolls of 3/16", 1/4"and 5/16" ID which has worked for me.

    There might be larger hoses which I just bought from Toyota .
     
    Bivouac, Oct 23, 2021
    #3
    AmherstAndy likes this.
  4. Oct 23, 2021 at 7:52 AM
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    halfbid

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    halfbid Well-Known Member

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    This is what I used. The 2600mm one was around $40.00.

    Screen Shot 2021-10-23 at 7.48.42 AM.jpg
     
    halfbid, Oct 23, 2021
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    Andy01DblCabTacoma likes this.
  5. Oct 23, 2021 at 8:00 AM
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    Gyrkin

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    Gyrkin Well-Known Member

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    3mm worked fine for me. I used these:
    $14 Upgr8 10 Feet Length Universal 3mm (1/8") Inner Diameter High Performance Silicone Vacuum Hose Line (3MM BLACK)

    https://www.amazon.com/gp/product/B07TJKC1KM
    1/4" Silicone Vacuum Tubing Hose Line 10FT 130PSI Max Pressure Black(6mm) with Stainless Worm Gear hose Clamps
    https://www.amazon.com/gp/product/B08FYG4LBW
    I33T High Performance Silicone Vacuum Tubing Hose, ID 8mm (5/16"), OD 13mm (0.51" inch), 5 Feet per reel (1.5 Meter), 60 psi Maxium Pressure Black
    https://www.amazon.com/gp/product/B089KJMM8R
     
    Gyrkin, Oct 23, 2021
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  6. Oct 23, 2021 at 8:50 AM
    #6
    JustADriver

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    JustADriver [OP] Well-Known Member

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    halfbid - Snagged the $40 one on ebay, thanks! I'm fine spending for OEM parts to avoid hassle.

    Gyrkin - What does that 6mm hose connect to? I see you linked a couple 3mm and one 6mm.
     
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    JustADriver, Oct 23, 2021
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    halfbid likes this.
  7. Oct 23, 2021 at 9:46 AM
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    Gyrkin

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    Gyrkin Well-Known Member

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    Gyrkin, Oct 23, 2021
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  8. Oct 23, 2021 at 10:29 AM
    #8
    0xDEADBEEF

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    0xDEADBEEF Swaying to the Symphony of Destruction

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    0xDEADBEEF, Oct 23, 2021
    #8
    JustADriver[OP] and Black DOG Lila like this.
  9. Oct 23, 2021 at 11:57 AM
    #9
    JustADriver

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    JustADriver [OP] Well-Known Member

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    Do you remember where you used the 6mm and 8mm hoses? I'm barely familiar enough with stuff to know that the small hoses are vacuum and some other large ones are coolant, fuel, or electrical. Once I have all parts and tools I might need I'm going to try to replace my IAC valve (the most intimidating job I've ever done on my truck) and want to be prepared with new hoses.
     
    JustADriver, Oct 23, 2021
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  10. Oct 23, 2021 at 1:02 PM
    #10
    Gyrkin

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    Gyrkin Well-Known Member

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    I don’t remember off-hand. Any hose that doesn’t have a clamp, just slides on, is likely a vacuum hose.
     
    Gyrkin, Oct 23, 2021
    #10
    JustADriver[QUOTED][OP] likes this.
  11. Oct 23, 2021 at 1:08 PM
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    Gyrkin

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    Gyrkin Well-Known Member

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    Gyrkin, Oct 23, 2021
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    JustADriver[OP] and Kevins60 like this.
  12. Oct 23, 2021 at 5:39 PM
    #12
    Area51Runner

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    Area51Runner Well-Known Member

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    https://www.siliconeintakes.com/liquid-air-adapter/silicone-boost-vacuum-hose-p-591.html

    Will be plenty of leftover.

    Was being discussed in this thread ---
    https://www.tacomaworld.com/threads/1st-gen-3-4-vacuum-hose-thread.599838/page-2#post-21113156

    also, this (same thread):

     
    Last edited: Oct 23, 2021
    Area51Runner, Oct 23, 2021
    #12
    JustADriver[QUOTED][OP] likes this.
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