Noise Hunting - after turning off engine

Discussion in 'LR3' started by beltwaybandit, Jun 8, 2015.

  1. beltwaybandit

    beltwaybandit Member

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    I have a 2007 LR3 (102K).

    About 3 seconds after I turn off the engine I hear a metallic hammer/tap (think wrench against the frame). I have a clean indicator pannel/dash lights - nothing seems wrong. No issues when driving/starting etc.

    When the LR3 shuts down is there some spring loaded clutch pack or vacuum that is released that could cause this?

    Any help/thoughts would be greatly appreciated.

    Thanks,
    BWB
     
  2. PaulLR3

    PaulLR3 Full Access Member

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    Do you have a locking rear differential? If so, it's the differential motor. Mine was more of a "chirping" noise after I turned off the ignition.

    The dealer said that when this motor completely fails, it can lock-up, damaging the differential. By catching this earlier, no damage was done to the differential.
     
  3. tlt

    tlt Full Access Member

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    Interesting I have never heard this one..
     
  4. beltwaybandit

    beltwaybandit Member

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    No Locking differential

    No, I have a HSE with just the computer controlling the differentials.

    I've attached the sound. You hear the purring of the engine, then I switch it off and remove the key so the dinging stops. Then two clicks/clunks.

    Thoughts?
     

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  5. Houm_WA

    Houm_WA Full Access Member

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    That (sound) is a new one to me.
     
  6. BearishDriver

    BearishDriver Full Access Member

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    oh my woow I can hear it strong and clear but have no idea of what may be...
    hmmm let's see what the experts on this forum suggest
     
  7. beltwaybandit

    beltwaybandit Member

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  8. redbadge

    redbadge Member

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    I would drive it on to a ramp and let somebody crawl under the truck see if s/he can find where the sound is coming from
     
  9. tlt

    tlt Full Access Member

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    It normally is the solenoid on the transfer case.

    Can be sorted out by calibrating the transfer case with IID tool that supports it. like autologic machine.

    It realy takes a couple of minutes,,,if it doesn’t sort out the problem the solenoid ie: e-diff motor should be changed.

    I have plenty of those on hand.
     
    Last edited: Jun 10, 2015
  10. qdan2002

    qdan2002 New Member

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    2005 lr3 makes the same exact noise when turning off engine after the clicks! Any resolution on the bang after clicks!!
     

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