A knock that relates to engine speed, could be because of a main bearing. There was in early years a thicker main to replace and correct the knock. It is hard to say at 130k what the condition is without inspection. You can confirm a potential #1 main knock by removing the serpentine belt. If the knock is gone it is good suspect.
The lifter you are talking of is the automatic level control. You could have leaking lines, shocks, faulty sensors, leaking compressor, just to name a few. It would need some diagnosis.
Shakes at freeway speeds could relate to tire balance, tire irregularities, bent cv axle, worn motor mounts, etc.
Saturday, March 27th, 2010 AT 12:05 PM