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Discussion Starter #1
So when i start it up i hear a slight knock/rattle then it goes away while idling

And while slowly revving the "knocking" gets louder/more consistant (Sitting parked)

(While driving) the noise goes away or its faintly there,

I doubt its gonna be rod knock because its not there while idling and it also goes away,

Could it be a loose timing chain
Also Bought the car with 62,000kms
Used from a hyundai dealer
Now has 72,000kms
Help!!
 

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Discussion Starter #2
Update,
Went into Hyundai they said its a flex pipe rattling
Then 10 mins later on the highway engine blows
Now theyre saying ecu has been tampered
 
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