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Thread: noise after turning engine off

  1. Default noise after turning engine off

    Hi

    today ive heard a noise after turning engine off . like something spinning when engine is turned off , can hear it for like 1 second
    some say its the alternator (dont know if its correct word in english)


    is it normal ?

  2. #2
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    Default

    Very normal...Mazdas have been doing that since my model (2005 Neo)

  3. #3

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    my fan keeps going after the engines off. it doesnt always do it tho

  4. Default

    some say its the throtle blade shutting to keep engine from dieseling,then cracks bak open

  5. #5

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    That's normal. I don't think I've noticed it happening to my car since summer though.
    Quote Originally Posted by lup15 View Post
    my fan keeps going after the engines off. it doesnt always do it tho

  6. #6

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    There was a thread on this a while ago and from memory it has a mini shut down procedure, it checks to make sure throttle plates has full movement and I've heard it also keeps oil flowing through the turbo for 30s after you turn it off to allow it to cool down properly.

  7. #7
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    Yeah i remember making a post on this AGES ago. Isn't it a thermo fan or something? i hear it when its hot or when ive been driving for a while.

  8. Default

    If it's a high-ish pitch noise you're referring to, I remember this problem on the CX7. I think general consensus on forums was that it was the high pressure fuel pump 'discharging'


    cheers

    Satz

  9. #9
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    Just to add another theory to the mix

    It could be the throttle plate doing a calibration. Presumably so that its set correctly for startup.

    All recent Nissans do that, sounds the same.

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