Re: Audi A4 1.9tdi PD Intermittant mis-fire under light load
Adam Sutton
I've seen this before, I'm not saying this will always be the cure but it's worth investigating. It turned out on the A4 8E Avant we had in that the one way clutch in the alternator pulley was seized up. This caused the alternator belt to jump & vibrate.This was causing the whole engine to vibrate at tickover (honestly). We changed the pulley which smoothed out the vibrations & no more problems. Hope this helps.
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