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Thread: Engine runs on after key is turned off.

  1. #11
    Legendary happygu's Avatar
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    Aaron,

    My old 4.2 used to do it every now and again too.

    Never harmed it at all, as it still ran like clockwork when I sold it.

    I would add that it is the fuel solenoid too - If it bothers you too much, then take a look at the wiring first to make sure that the terminations are good, and if there doesn't seem to be a damage or corrosion, then take a look at the solenoid itself.

    Mic
    GU PATROL 2011 Ti, with goodies...

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  3. #12
    Enjoying the trips macca's Avatar
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    Quote Originally Posted by growler2058 View Post
    I let it idle for 10-15 seconds and it doesn't happen, when I haven't let it idle is when it happens.
    I will give that a go, thanks for the tip.
    Cheers
    Macca

  4. #13
    Expert janderson's Avatar
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    Its just that you can't stop a Nissan with a TD4.2. But seriously, mine dose it also. Have given up on finding the coarse. It doesn't do it all the time but when it dose, I just floor the go pedal with the key turned off. Stops strait away then.
    1st G60 Then MQ Now GU

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    macca (1st December 2013)

  6. #14
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    This is very common for the 4.2's. The problem is initially caused by lack of maintenance. But once the damage is done there is nothing you can do about it but change the solenoid. If you dont change you fuel filter often enough the fuel pump has to work alot harder to pump fuel and becomes very hot hardening the small piece of rubber on the bottom of the solenoid. This is also the major cause of leaks as the o-rings are affected the same way.

    There is a rare chance the pump is just worn out but there are many other symptoms that go along with that.

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    mudski (3rd December 2013)

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    Hi MikeBossyBos, sometimes only for a few seconds but sometimes maybe 5 seconds feels like forever and she sounds rough when its happening. she runs beautiful & don't want to hurt her.

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    thank you every body for your help its been great to hear everyone's thoughts. I have really enjoyed this forum. good crowd. cheers.

  10. #17
    Expert janderson's Avatar
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    I have noticed that mine seems to run on much more on the hotter days.
    1st G60 Then MQ Now GU

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