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Knock sensors...

Discussion in '1st Gen Tundras (2000-2006)' started by Bjamin, Aug 1, 2017.

  1. Aug 1, 2017 at 12:26 PM
    #1
    Bjamin

    Bjamin [OP] New Member

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    Benjamin
    Texas
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    My check engine light came on. Code suggested knock sensor. I changed the timing belt,water pump and tensioner. New Serpentine belt up front all at 100,000 miles. This seemed to make it happy for the last 13,000 miles . Now check engine light is coming back on same code . I learned there are two knock sensors under the manifold. Each time disconnecting the battery for just a second resets it, and it seems to be happy for a couple of weeks and then it does it again. Knock sensors are around $200 a piece. Labor to install is a killer. Is anyone else having these issues?
     
  2. Aug 1, 2017 at 2:46 PM
    #2
    bobeast

    bobeast really old member

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    Bob
    Hollister, CA
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    2008 DC
    - Bull Bar - LED Bunny Burners - AMP retractable running boards - Headlight leveling retrofit - P3 Brake Controller - 60% rear seat delete - relocation of Sub to rear wall - Bilstein 5100 x4, top setting with 2 shims per side - Coach builder +2 rear shackles w/carrier bearing drop - Firestone Air bags - on-board compressor with auto-leveling - Dual Undercover Swing Boxes. - P285/65/R20 (34.6") BFG TA KO2's - TRD Front skid plate - Pop & Lock Tailgate lock - Remote Tailgate mod - LED Headlights - Nav Bypass - iPhone integration - Serius/XM retrofit - 25% front tint - Bizon electric tonneau cover - Power folding tow mirror upgrade - 2010+ leveling Headlight mod - Auto-fold mirror mod. - one-touch lane changer mod - Flash to open garage opener mod - Rigid H/L fog light upgrade - Pushbutton / Remote start mod.
    huh. Code says knock sensor, so naturally you changed timing belt,water pump and tensioner. Must be a story around that :)
     
  3. Aug 1, 2017 at 2:49 PM
    #3
    Roman

    Roman Toyota Parts Master Vendor

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    T-Rex266 likes this.
  4. Aug 1, 2017 at 6:54 PM
    #4
    Bjamin

    Bjamin [OP] New Member

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    05 Tundra 4.7 SR5
     
  5. Aug 1, 2017 at 7:04 PM
    #5
    Bjamin

    Bjamin [OP] New Member

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    The time had come to change the timing belt. I was hoping that the timing belt stretched out just enough to cause a vibration. It actually did Stretch out a little compared to the new one. Timing belt, water pump and tensioner, all came in the kit. Shot in the dark. Just me being a little stubborn. Had this Tundra 11 years.Other than normal maintenance not a dime out of my pocket. Looks like I won't be saying that much longer...
     
    NewImprovedRon likes this.
  6. Aug 1, 2017 at 7:06 PM
    #6
    Bjamin

    Bjamin [OP] New Member

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    05 Tundra 4.7 SR5
  7. Aug 1, 2017 at 7:06 PM
    #7
    Bjamin

    Bjamin [OP] New Member

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    Thank you sir. I'll check it out.
     
  8. Aug 1, 2017 at 7:22 PM
    #8
    bobeast

    bobeast really old member

    Joined:
    Feb 11, 2015
    Member:
    #960
    Messages:
    1,527
    Gender:
    Male
    First Name:
    Bob
    Hollister, CA
    Vehicle:
    2008 DC
    - Bull Bar - LED Bunny Burners - AMP retractable running boards - Headlight leveling retrofit - P3 Brake Controller - 60% rear seat delete - relocation of Sub to rear wall - Bilstein 5100 x4, top setting with 2 shims per side - Coach builder +2 rear shackles w/carrier bearing drop - Firestone Air bags - on-board compressor with auto-leveling - Dual Undercover Swing Boxes. - P285/65/R20 (34.6") BFG TA KO2's - TRD Front skid plate - Pop & Lock Tailgate lock - Remote Tailgate mod - LED Headlights - Nav Bypass - iPhone integration - Serius/XM retrofit - 25% front tint - Bizon electric tonneau cover - Power folding tow mirror upgrade - 2010+ leveling Headlight mod - Auto-fold mirror mod. - one-touch lane changer mod - Flash to open garage opener mod - Rigid H/L fog light upgrade - Pushbutton / Remote start mod.

    Ah ok. that makes some sense :) Either way, let us know how it goes.
     
    NewImprovedRon likes this.

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