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Knock Sensor Replacement

Discussion in '2nd Gen. Tacomas (2005-2015)' started by avanasch, Aug 22, 2012.

  1. Aug 22, 2012 at 8:15 PM
    #1
    avanasch

    avanasch [OP] Active Member

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    Hey Guys,

    Needless to say I am pretty PO'd. My knock sensor code was thrown this morning right before I was headed 300 miles to buy a motorcycle. Truck had zero power and got 11-12 mpg the whole way due to ecu going into a "safe" mode.

    Anyway, anybody have pictures or manual pdf's that show the sensor locations? The truck is a 2007 4.0L crew cab. I've got the intake, throttle body, and intake manifold removed. I'm going to pick up the star/toriq bits tomorrow to pull the...plenum????

    I can't see any wires going down into this area at all! I've heard of cylinder head removal...really? Are they just talking valve covers or what? Any help is greatly appreciated
     
    MurderedTacoV2 likes this.
  2. Aug 22, 2012 at 8:17 PM
    #2
    blakes09

    blakes09 Toyota Tech..when im not Fishing

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  3. Aug 22, 2012 at 8:28 PM
    #3
    blakes09

    blakes09 Toyota Tech..when im not Fishing

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    P0325 Knock Sensor 1 Circuit Malfunction (Bank I or Single Sensor)
    P0326 Knock Sensor 1 Circuit Range/Performance (Bank 1 or Single Sensor)
    P0327 Knock Sensor 1 Circuit Low Input (Bank I or Single Sensor)
    P0328 Knock Sensor 1 Circuit High Input (Bank I or Single Sensor)
    P0329 Knock Sensor 1 Circuit Intermittent (Bank 1 or Single Sensor)
    P0330 Knock Sensor 2 Circuit Malfunction (Bank 2)
    P0331 Knock Sensor 2 Circuit Range/Performance (Bank 2)
    P0332 Knock Sensor 2 Circuit Low Input (Bank 2)
    P0333 Knock Sensor 2 Circuit High Input (Bank 2)
    P0334 Knock Sensor 2 Circuit Intermittent (Bank 2)
    [​IMG]
    [​IMG]
     
  4. Aug 22, 2012 at 8:39 PM
    #4
    blakes09

    blakes09 Toyota Tech..when im not Fishing

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    when you get to them check for chewed or broken wires(rats)
     
  5. Aug 23, 2012 at 5:05 AM
    #5
    08TacoTrD

    08TacoTrD Well-Known Member

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    X2
     
    Larzzzz likes this.
  6. Aug 23, 2012 at 7:13 AM
    #6
    avanasch

    avanasch [OP] Active Member

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    Code is P0333.

    Yup, its gonna be chewed wires. I live on a farm and I drive my truck about once per month. Last time they built a nest above the cabin air filter and cleaning out the smell/ducting was a nightmare. I can see all the chewed up hazelnuts (filberts) and mouse shit down below the plenum. :mad:
     
  7. Aug 23, 2012 at 7:31 AM
    #7
    08TacoTrD

    08TacoTrD Well-Known Member

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    I had the same thing happen to me. The parts are very cheap but the labor to replace the harness is big. They have to remove a lot to get to it. I went to my insurance company and filed a claim which saved me some money. So far so good after replacing the harness.
     
  8. Aug 23, 2012 at 7:33 AM
    #8
    avanasch

    avanasch [OP] Active Member

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    What gaskets are REQUIRED to do this job? Where can I purchase them?

    Thanks for the help guys. The diagram does not show how to get to the sensors but they appear to be just beneath the plenum so hopefully I do not have to remove cylinder heads. That would be rediculous. I will post some pictures so that this thread isn't worthless for others. :D
     
  9. Aug 23, 2012 at 7:42 AM
    #9
    08TacoTrD

    08TacoTrD Well-Known Member

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    5100's and 883 OME Coils TRD Exhaust Deaver 1.5" AAL Rear Differential Breather Extension, 4WD Light, Tailgate Pipe clamp, Fog lights on while High Beams on, Carrier Bearing flip
    I just happened to have my maintenance file out. Hope this helps.

    This is off of my bill. You'll need these:

    82219-0C010 - wire sensor
    17176-0P010 - Air Surge Gasket
    17177-AD010 - Intake Manifold Gasket
    17178-AD010 - Intake Manifold Gasket
    16341-AD010 - Water out Gasket (two of these)
    96761-35031 - O-ring (two of these)
    00272-SLLC2 - Super Long Life Coolant
     
  10. Aug 23, 2012 at 7:52 AM
    #10
    Manwithoutaplan

    Manwithoutaplan the full Monty

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    -Nitro 4.56 gears - Arb Front and Rear lockers. -Rear Swing out bumper Curiosity of ( Dept .94) https://www.facebook.com/Dept94 -Tinted, -ProComp 6 inch lift with Icon Coil overs and Bilstein's 7100Resi -315/70/17 - 17x8 in Pro Comp Matte black rims 4.5 bs -East Coast Gear Supply Sliders -ALL Pro EXP LEaf pack -Camburg UCA's -CAB mount CHOP
    I had this problem my truck threw a check engine light and toyota told me that rat ate my knock sensor. The job was cover mostly by insurances but it cost about 2k to fix :eek:
     
  11. Aug 23, 2012 at 7:59 AM
    #11
    08TacoTrD

    08TacoTrD Well-Known Member

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    Almost all labor. I about passed out when the service guy gave me the quote and when he talked me off the cliff I called the insurance company.
     
  12. Aug 23, 2012 at 8:03 AM
    #12
    Manwithoutaplan

    Manwithoutaplan the full Monty

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    -Nitro 4.56 gears - Arb Front and Rear lockers. -Rear Swing out bumper Curiosity of ( Dept .94) https://www.facebook.com/Dept94 -Tinted, -ProComp 6 inch lift with Icon Coil overs and Bilstein's 7100Resi -315/70/17 - 17x8 in Pro Comp Matte black rims 4.5 bs -East Coast Gear Supply Sliders -ALL Pro EXP LEaf pack -Camburg UCA's -CAB mount CHOP
    yea completely labor they have to take the whole top of the engine off :annoyed:
     
  13. Aug 24, 2012 at 7:32 AM
    #13
    avanasch

    avanasch [OP] Active Member

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    Ok guys, I'm looking for some more help.

    This is my progress thus far. I can see the knock sensor wires have been chewed off right at the plug:mad:

    Problem is: I can't get to them. How the heck do you remove the two coolant pipes? I have removed both bolts that hold the piping brackets to the engine block in the valley. I have obviously removed the coolant "housing"?? on the front of the engine and I have unbolted the one from the rear but cannot get it of either. Anybody got points???

    IMG_0983_d767feef36263a15ff89fdc7b72548d4f588cf29.jpg

    IMG_0985_d2365a5e6067f13f80f88d1c1feec335893d5d6b.jpg
     
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  14. Aug 24, 2012 at 5:08 PM
    #14
    08TacoTrD

    08TacoTrD Well-Known Member

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    Wish I could help but my dealer dealt with mine. So here's a bump for you.
     
  15. Aug 24, 2012 at 8:12 PM
    #15
    Smirky

    Smirky Active Member

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    Work in progress
    Yep same here, I'm in orlando and rats nested on my cabin filter and chewed lots of wiring tripping my knock sensors. Not a warranty covered incident but insurance covered it this time only I was told.
     
  16. Aug 25, 2012 at 3:19 AM
    #16
    fixnfly

    fixnfly Well-Known Member

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    Why did toyota bury the knock sensor so far into the engine?????:eek:
    The sensor for the GM trucks I have owned are screwed into the side of the block. It's a 5 minute job to change one
     
  17. Aug 25, 2012 at 3:36 AM
    #17
    buddywh1

    buddywh1 Well-Known Member

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    Is there any possibility you can just splice the wires and not have to go any further?
     
  18. Aug 25, 2012 at 11:17 AM
    #18
    avanasch

    avanasch [OP] Active Member

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    There is no way to get to the sensor. I can only barely see it and the mice have chewed the wire off flush with the sensor.....bummer
     
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  19. Aug 25, 2012 at 11:25 AM
    #19
    98tacoma27

    98tacoma27 is going full "Ben" Moderator

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    Some stuff. Not a lot, just some.
  20. Aug 25, 2012 at 2:40 PM
    #20
    maineah

    maineah Well-Known Member

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    For the very same reason GM put starters under the manifold.
     

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