Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - Rough idle,ticking noise-PLEASE HELP!!!!
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Old 12-31-2012, 11:57 AM   #14
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Well there are two belt on the side of the engine one is the serp which is on the accessory's and the timing belt which is over top of two big gears if you have the Zetec engine. If you have a Zetec that knocking sound is very common idk why though but its nothing to worry about. And VCT is variable cam timing which only comes on a SVT Focus which I'm sure you don't have. As for the rough idle whens the last time the air filter was changed, are you having voltage drops, or maybe its a dirty throttle body. Good luck!
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