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      12-11-2023, 01:25 PM   #1
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Drives: 2010 BMW X3
Join Date: Dec 2023
Location: BC

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Jerking hesitation under acceleration. 2010 X3

2010 X3 3L V6

Replaced my valve cover gasket due to oil leak. Prior to replacing gasket vehicle ran fine. After replacing gasket vehicle began hesitating when accelerating.

Occurs after engine is warmed up and under a load right at 2,ooo RPM. Stuttering hesitation which feels like a bad coil/ plug.

All plugs and coils have been replaced in the last year. No fault codes present.

To diagnose I purchased a brand new coil and moved it from cylinder 1-6 positions with a test drive in between. Problem remains. All plugs removed and inspected. Valvetronic motor removed and gasket replaced. Valvetronic motor reset after re-installation. Problem remains.

Valvetronic motor makes a clicking noise when ignition is turned off. No oil is leaking from the valve gasket. Engine runs rough on startup but immediately smooths out. Other than hesitation at 2,000 RPM engine runs smooth and has lots of power.

Direction on what to look at next would be appreciated.
Appreciate 0