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Well the ST has decided to start running a but rough. There is a horrible ticking noise when idoling which can be heard inside the car. It's not as noticeable when the bonnet is up tho. It's also backfiring something mad and popping. Standard exhaust. I did let it run right to empty the other day so I hope it is dirty petrol anybody ever had a similar problem?
 

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Poping is usually timing related, either way, don't hang around for random guesses, get it checked properly !!
 
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