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New truck- Tapping sound

Discussion in 'Toyota Trucks & SUVs' started by bllmrtn, May 18, 2010.

  1. bllmrtn

    bllmrtn [OP] New Member

    Joined:
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    First Name:
    Bill
    Maine
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    2010 Tacoma D-Cab
    Hey all
    Bought a new truck last weel. A d-cab with the 4.0l six. I'm wondering if the slight noise is something to be concerned with. On morning start ups i seem to hear a lifter, valve tapping like sound. Also hear it when the truck accelerates whenstarting up a hill. This ticky sound may be normal on these sixes but i haven't been in any other taco to know the diff. Again, the sound isn't very loud but noticeable. Maybe its a slight exhaust leak. Just wondering. Thanks, Bill
     
  2. AeroCooper

    AeroCooper Half the strength of ten (microscopic men)

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    Leveled with 5100s @ 1.75", Hankook Dynapro AT/m, Ultra Maverick wheels, N-Fab side steps, WeatherTech floor liners, EGR in-channel rain guards, TRD shift knob for 10 extra mpg, Gentex 177 auto dim rear view mirror with compass and temp, CompuStar remote start, Muth heated signal mirrors, disable AC with defrost mod
    Same thing with mine, and a ton of others it seems. Using premium gas helps if you are concerned or if it really bothers you, but I've learned to ignore it, since it seems everyone has the same experience and Toyota says it is "normal".

    Maybe someone has a different answer though?
     
  3. nad

    nad mmmm tacos!

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    Jordan
    Canada
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    premium doesnt help for me, it actually makes it worse, if you do a search you will find lots of threads about it, seeing how your truck is so new its most likely the pwm valve tapping, which there are a couple ways to try and isolate found in other threads. If you do have ticking still after isolating that valve then you may have the same injector tick that I have, there is nothing you can do about that, it echoes through the manifolds and makes it seem louder than it is.
     
  4. tommyxv

    tommyxv Well-Known Member

    Joined:
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    '11 DC 4x4 TRD Sport
    ...I have the same light tapping sound with my '11 4.0l v6. Asked a buddy about it who knows Toyota engines very well, said it's the injectors and it is normal. Told me it is nothing to worry about.
     
  5. SlurpeeBlueMetallic

    SlurpeeBlueMetallic FFFFFFUUUUUUUUUUUUUUU...

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    Check this thread... quick, cheap improvement if it's what you're hearing.
     
  6. tommyxv

    tommyxv Well-Known Member

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    Cool, thx. After reading that thread, it sounds like my tapping is much less noticeable than some. No way could I hear it in the cab with the windows up. I'll see hows it goes.
     
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