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Tacoma Knocking

Discussion in 'Technical Chat' started by bp red, Feb 19, 2010.

  1. Feb 19, 2010 at 2:50 PM
    #1
    bp red

    bp red [OP] Well-Known Member

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    When my truck(2002 v6 dc prerunner auto) is at idle and the brake applied and tranny in Drive or reverse. My truck has a Knocking sound coming from the engine or it sounds that way to me. If you put it in park or neutral it stops. When you start to accelerate you can here it but then it goes away. i have searched but can not find an answer. Has anyone else ran in to this? Thanks
     
  2. Feb 20, 2010 at 5:52 AM
    #2
    EnolaGaia

    EnolaGaia Well-Known Member

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    01 SR: Double Cab conversion, S/C, lowered.
    Does it sound like engine knock or something vibrating / shaking and knocking against something else?
     
  3. Feb 20, 2010 at 12:41 PM
    #3
    bp red

    bp red [OP] Well-Known Member

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    It sound like the engine knocking to me. But it is only when in gear.
     
  4. Feb 20, 2010 at 12:49 PM
    #4
    01tacoprerunner

    01tacoprerunner Lifted 'n Locked 4WD Prerunner

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    Bluefield, WV
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    4WD Conversion, No-slip locker, 5100s set at 2.5" and shackles in the back. Black 2nd gen rims, and Courser M/T tires, Bull Bar,Fog lights, UWS toolbox, CB Radio, Fiberglass antenna, 2nd Gen Badges, Deck Plate Mod, Diff Breather Mod, Sockmonkey decals.
    I have the same problem on my 2.7 in my 2001, it makes me mad.:mad:
     
  5. Mar 8, 2010 at 11:43 AM
    #5
    bp red

    bp red [OP] Well-Known Member

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    Well i took it to the dealer and they thought it was the flex plate cracked so they pulled the trans and it wasn't. I had them go ahead and replace the rear main while they were in there. then they thought it was from the timing belt so they replaced that and the water pump. The noise has got alot quiter and does not happen as offten but it is still there. I have also replaced the plugs and put in a new fuel filter. Any other suggestions?
     
  6. Apr 2, 2010 at 3:16 PM
    #6
    JRA2000TL

    JRA2000TL Member

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    This sounds exactly like what mine is doing; although it's more of a thumping noise. I've had the truck a week and it starts this crap. Any help is greatly appreciated. I wish now I'd bought an old $4k truck since this thing is already needing work.
     
  7. Jun 25, 2010 at 8:28 PM
    #7
    bp red

    bp red [OP] Well-Known Member

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    Just an updated My truck has been in the shop for three weeks got it back today and seems the problem is fixed. They pulled the engine and replaced the main bearings and the oil pump and had the crank checked and polished. He said the the problem was caused from someone overtighting the belts. so it ended up costing 1516.17 to get that done plus when the dealer had it and done the timing belt ,water pump and tensioner trying to fix the noise was 800. so 2300 dollars later I am happy.
     
  8. Jun 25, 2010 at 8:32 PM
    #8
    desertdude59

    desertdude59 CRAZY 4WHEELER

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    From the Mojave desert now in Wild and Wonderful W
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    How would tightening up belts too tight ruin your crank bearings. Sounds like they just told you that. Glad you got it fixed though.
     
  9. Jun 25, 2010 at 8:33 PM
    #9
    desertdude59

    desertdude59 CRAZY 4WHEELER

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    From the Mojave desert now in Wild and Wonderful W
    Vehicle:
    1991 toyota 4x4 sr5-lost but not forgotten
    4" lift after market front bumper bed mount lightbar/roll bar (4)6" kc's on the roll bar (2) kc flat back bumper mounts f/r gears for the 33's
    Sounds like you had a bad oil pump and it just went from there.
     
  10. Jun 25, 2010 at 8:50 PM
    #10
    bp red

    bp red [OP] Well-Known Member

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    Front upper main was wore and lower rear main. Its just my luck it would happen to me. But it seems to be good now.
     
  11. Jun 25, 2010 at 10:19 PM
    #11
    desertdude59

    desertdude59 CRAZY 4WHEELER

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    From the Mojave desert now in Wild and Wonderful W
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    1991 toyota 4x4 sr5-lost but not forgotten
    4" lift after market front bumper bed mount lightbar/roll bar (4)6" kc's on the roll bar (2) kc flat back bumper mounts f/r gears for the 33's

    Thats good to hear. At least its fixed now!
     
  12. Jun 26, 2010 at 5:32 AM
    #12
    Barnone

    Barnone Guest

    bp red,
    Glad you got her fixed. BTW, how many miles on your Taco?
     
  13. Jun 26, 2010 at 9:10 PM
    #13
    bp red

    bp red [OP] Well-Known Member

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