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Thread: Help ! Engine is shaking

  1. #1
    Join Date
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    Help ! Engine is shaking

    This morning when I was on the way to work, suddenly I feel the car vibrated. I was only about a km away from my office so I drove slowly to arrive car park. When the car is idling I can see the engine shaking. Vchecker doesn't show any engine fault code, is this engine mount problem ?

  2. #2
    Join Date
    Dec 2009
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    Mt. Colah, NSW
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    My first guess would be check the dogbone on the bottom of the engine.

  3. #3
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    Mar 2009
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    does it sound like its dropped a cylinder....ie is it running very rough? When a coil pack goes you drop a cylinder and the engine becomes unbalanced thus causing a lot of vibration. Very common problem

  4. #4
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    Quote Originally Posted by Gravey View Post
    does it sound like its dropped a cylinder....ie is it running very rough? When a coil pack goes you drop a cylinder and the engine becomes unbalanced thus causing a lot of vibration. Very common problem
    Wouldn't coilpack failure throw out a fault code ?? a bit hard to tell if it sound like missing cylinder, I'll check more tonight. Is there a quick way to check if coil pack is dead ?

  5. #5
    Join Date
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    Does it sound like a rough subaru?

    It could be the ignition sensor(two plugs connect to it on the airbox), if it sounds like the timing is out. I replaced mine last month.

  6. #6
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    Quote Originally Posted by bujna View Post
    Does it sound like a rough subaru?

    It could be the ignition sensor(two plugs connect to it on the airbox), if it sounds like the timing is out. I replaced mine last month.
    I don't own a rough subaru
    Just went out to car park to check, I don't think the engine miss fire, so it has to be some kind of mount issue.

  7. #7
    Join Date
    Oct 2008
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    someone's dogbone broke on here some time back and had simillar symptoms to you, as Merlin8r said, maybe have a quick check under your car and see if the dogbone/torque arm is loose/damaged? Could just be the bolts that hold it in have come loose or sheared, but i think the previous person had an INA dogbone that snapped itself
    Last edited by McDub; 09-02-2010 at 05:23 PM.

  8. #8
    Join Date
    Sep 2006
    Location
    sydney yulle
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    104
    have a look at the following
    *spark plugs whens the last time they were changed? fouling on the contact rounded edges on the contact.
    *check the coils for cracks and damage as well as the leads going to them (if there is a crack on the coil housing the spark will jump to the rocker cover or the closest earth, thus not firing the cylinder).
    *good test for the coils is with the engine on take each one out one at a time if missfiring gets worse its not that cylinder, if it does not change bingo you found your problem cylinder.
    *check intake likes, turbo vaccum lines for that matter (if you hear hissing its a good indicator)
    well theres a lot of things that can go wrong the above are pretty easy to do and generaly are the common problems.
    GT-28-VW three hundred and something days till get licence back , couldnt resist that corrolla needed to teach it a lesson

  9. #9
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    My understanding is that a failed coilpack won't show in a scan, but will cause exactly this type of issue. Hard to diagnose unfortunately other than finding a replacement set and seeing how they go - if you know someone else with the same car who's happy to swap coilpacks with you briefly, that may help find the issue for you.

    Never hurts to check your mounts (engine, gearbox and dogbone) for obvious faults though.
    Nothing to see here...

  10. #10
    Join Date
    Oct 2007
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    by shaking how badly do you mean?
    mine shakes, and iv always though it was odd, but iv been told its perfectly fine...

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