anyone else having piston problems ? Dealer has now put 3 sets in and motor still rattles .mind you I only have 590 miles on it and my problems started at 73 .(also has been in shop 90 days since June )
Sounds like too much valve clearance. They all have a slight rattle when the engine is cold as the factory sets them a little loose so when the engine breaks in they will be within specs.
Has the dealer checked the valve clearance to make sure that is not the problem.?