146 Rattle and loss of engine power - Alfa Romeo Forum
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Crazed 146 Rattle and loss of engine power

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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I dont know if this helps, but i did hear that on other models there is an exhaust bracket attached to the manifold and the vibration was being picked up by the knock sensor and throwing a wobbler, just a thought...
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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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