So, I was wondering when Coil packs should be changed. I have 140,000 on the original parts. I have some misfires on two cylinders but that is being worked up, not apparently due to the coil packs. They are $30 each.
When have other changed theirs????
Mike
(PS My mechanic is taking valve cover off this week/next week (fit me in), and knows the cam adjuster is fairly new, but questions the CHAIN> do those get bad over time or just break?)
'18 BMW M5, '19 Porsche Boxster GTS
(prior '94 325is, '97 M3, '00 A6 4.2,'03 RS6,'08 A4 Cab,'13 A8L,'15 Q7,'16 BMW M2,
Replace them when they go bad. If you don't have misfires - they are good.
Chain usually doesn't go bad. Tensioner pads do.
Although I've seen this one recently:
He is certain he replaced the Tensioners at 127,000 miles but we are going to see.
I agree, I can't see a chain being 'bad' without be actually broken, which of course would be a catastrophic fault.
I just hope the problem is found with CERTAINTY and not try this, try that......
Mike
'18 BMW M5, '19 Porsche Boxster GTS
(prior '94 325is, '97 M3, '00 A6 4.2,'03 RS6,'08 A4 Cab,'13 A8L,'15 Q7,'16 BMW M2,
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