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  1. #1
    VXR newbie
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    19th January 2018
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    Default Clicking/tapping noise under hard acceleration?

    Afternoon all

    Just discovered recently that on occasion the VXR makes what I can only describe as a clicking/tapping/rattling sound under hard acceleration apparently only in 5th/6th gear, the noise lasts only momentarily for about 1sec and I can push past it, no apparent loss in power...

    It happened yesterday and I noticed a puff of smoke as it made that noise - I wonder if that suggests a certain issue..

    Either way, once it's done it it tends not to do it for a while afterwards, even if I try and make it do it, it's sporadic.

    Anyone else had a similar issue - should I be concerned?

  2. #2
    VXR newbie
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    20th July 2018
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    I'm having the same issue with mine. Interesting. Seems like a mild flat spot at WOT. And smoke.

    Sent from my LG-K520 using Tapatalk

  3. #3
    VXRacing ahead Giancarl03's Avatar
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    18th February 2014
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    565

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    Mine does it as well. Been like this over 3 years now. Still cant figure it out.
    -=2014 Astra OPC=-
    Summit White|Aero Pack|206kW|400Nm|1530kg

  4. #4
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    20th July 2018
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    I'm going to check the cam actuator solenoids as well as the boost solenoid. Can't think of anything else really.

    Sent from my LG-K520 using Tapatalk

  5. #5
    VXRacing ahead Giancarl03's Avatar
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    18th February 2014
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    Quote Originally Posted by OPC_Ya View Post
    I'm going to check the cam actuator solenoids as well as the boost solenoid. Can't think of anything else really.

    Sent from my LG-K520 using Tapatalk
    You will be the hero to alot of people if you can figure it out
    -=2014 Astra OPC=-
    Summit White|Aero Pack|206kW|400Nm|1530kg

  6. #6
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    20th July 2018
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    I am on the case. Will be checking a few things this weekend. Updates to follow.

    Sent from my LG-K520 using Tapatalk

  7. #7
    VXRacing ahead Giancarl03's Avatar
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    18th February 2014
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    Any updates?


    Sent from my iPhone using Tapatalk
    -=2014 Astra OPC=-
    Summit White|Aero Pack|206kW|400Nm|1530kg

  8. #8
    VXR newbie
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    20th July 2018
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    Ok. One thing you need to check is your oil levels. I did an oil change and the noise is gone. Car is boosting way better. I only got about 4 litres out. The dip stick on the J is a piece of ****. Dropped 6 litres in there and she feels great.

    Sent from my LG-K520 using Tapatalk

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