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  1. #1
    bootneck_max's Avatar
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    Engine knocking on start up!! Help!!!!

    Hey guys....right basically a couple days back my emissions light came on, at the time the engine sounded fine, then a couple days later the engine started making a prominent knocking sound on start up, but no constant...it sounded like it was adjusting something, then after about 30secs the knocking sound stops. 9 times out of ten the emission light stays on, however time to time it'll switch off. I've tried search on here, but no one has mentioned the specifics about only on start up ect....

    I've read it could be a couple things? Cam follower, fly wheel or tensioners? Anyone help me? And is it a easy fix?

    Much appreciate!

    Max

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  3. #2
    Lewis583's Avatar
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    Get it scanned with a diagnostic machine for starters(preferably something decent; VCDS etc) to give any sort of direction to go in.
    2008 E92 BMW 335i M-sport
    1990 Golf GTi w/ a 20v heart BUILD THREAD
    Full VCDS

    2006 A3 2.0T quattro S-line R.I.P. You will be missed.

    ** Breaking - 8L 1997 Audi A3 1.8T. **

  4. #3
    bootneck_max's Avatar
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    Had a diagnostics test, there were a few fault codes, but the guy said that my issue is the tensioners, is this a easy fix? Or is it a labour intensive and expensive?

 

 

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