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Thread: Medium-Hard throttle and the car judders ('98 Astra 1.6 16v Mk4)

  
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    Medium-Hard throttle and the car judders ('98 Astra 1.6 16v Mk4)

    Hi!

    Re: Mk4 1998 Astra 1.6 16v DOHC

    I've just been on a 1000+ mile holiday and near to home I found the car started to judder when accelerating (not if very gentle acceleration) and didn't have full power - seems to do it right through the rev range if throttling hard. I doesn't feel like a misfiring problem though.

    Checked the car today and still doing the same thing. Seems to have used quite a bit of oil in those 1000 miles but I've checked the plugs and they're all fine with tan deposits on them. Air filter clean. Throttle body is pretty clean. No lights on dash.

    Any ideas?!

    Many thanks,
    Matthew

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    Andrew,

    I'm experiencing the same problem in my Mk4 Astra OPC.

    Hopefully i will have an answer soon.

    There is some good info on here.. have a search for threads "misfiring"

    I'll keep you posted if i hear anything mate.

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    Hi, welcome to AOC

    I'm pretty sure 1998 1.6 16v's have a coil pack. If yours does, I would change that, and perhaps the HT leads also, if that doesnt cure it. If these 2 items are worn out, it can cause the problems you describe.

    It may also be the EGR valve requiring cleaning (carb cleaner) or replacement.

    Just a few guesses from me to start with
    I>< Silver Coupe ><I

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