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Harrison Katz

Mk7 Zetec S TDCI cold starting issue (idle speed drop)

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Hi guys, 


I have a 2009 Zetec s 1.6 TDCi with 75,000 miles... I recently got the glow plugs changed (and cam belt) to see if it would fix the issue but it didn't. I was just wondering if anyone had any idea what it could be. When the temperature is low (5-10 °C) when turning the ignition the car starts relatively quickly but the rpm drops (700) then rises (quite high, 1100) by using some type of "auto revving tool". The engine never stalls. After about 20 secs of doing this, the car idles completely fine and when driving, it drives perfect.


Say if I drive the car, stop and then go back to the car (while warm) there is no issue with start up


Someone please help! Thanks alot,


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