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Hi can anyone help? I have a problem with my 146 1.6 year 2000. At 2500 revs there is a rattle/vibration appearing from the head and it starts running on 3 cylinders. When the engine returns to idle it runs on 4 cylinders again. I have changed the cam shaft variator and all injectors. This hasn't worked. Any ideas?
 

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I am thinking the coil pack may have packed up on No 1 cylinder, oil often gets slopped down the plug hole when careless mechanics miss the oil filler cap, this in turn kills the coil pack over time. An appropriate coil pack off ebay will fix it for about £20 if it is the fault.

HTH and good luck
 

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Blah, on the QV's iv worked on they have all snapped through vibration hahaha, what a place to put a bracket made from cheap of cheap metal! hahaha.
 
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