While doing some heavy acceleration on to the highway,when the trans kicked down it sounded like something broke and now there is a vibration any time that you accelerate untill it gets above 1000rpm. It also does not matter if it is in drive or park neutral. It feels like a very bad miss that goes away above 1000rpm.
So I did a compression check and all is well,I also replaced plugs,cap rotor,and did the upper timing cover seals while I was in there and the timing chain looked good. The bad vibe miss is still there Any Ideas???
This is my 88 300E W124 It never idled good anyway but now its like a cement mixer!

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88 W124 3.0
96 R129 119eng
06 ML350
98 ML320 sold
02 CLK55 amg