Thread: Car Stumbles at Idle
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      03-20-2013, 05:06 PM   #4
rbehniwal
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Drives: 2018 M4 ZCP, 2015 x5 50i
Join Date: Apr 2007
Location: Wenatchee, WA

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I had the same problem and it was due to really dirty intake valves. Walnut shell blasting serviced fixed it. Very smooth now.
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