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1990 Lexus LS400 Question: What is causing the car to jump when shifting from N to D?



, 4.0L V8, Bristol, FL, September 19, 2012, 00:54

I feel a sudden shock (jump) when I shift from N to D
This problem happens only when the car is stopped and I shift from N to D
This is not happening every time, sometimes the shifting from N to D is smooth
Otherwise. the transmission is shifting very smoothly between all gears at all times
Thanks for your help

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  • Answer #1

    Greg's Orange Auto (15380 Answers) , Orange, CA - (714) 361-9386
    globalhelper September 19, 2012, 09:33

    this could be several issue from motor mounts to high idle, and poss trans issues.seek a diag at aamco for free to make sure trans is ok then move to poss other issues

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    , September 19, 2012, 11:02

    Thanks for your help,
    Idle speed is normal, no error codes for transmission but sometimes I hear a loud sound of "whistling" when starting the engine in the morning before engaging transmission, this sound goes away after sometimes
    I think this sound coming from oil flow which is stuck somewhere in the transmission

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