his symptonms are accel/decel/ and cruising.
just an alignment (not balancing since some get this confused) will NOT cause a vibration. the only possibly way for an alignment to cause a vibration is under two conditions.....
1) you have negative caster (shopping cart wheel going back and forth if you will). if you have negative caster you have bigger problems then a vibration. you would have a hugely bent part that would be pretty visable. no vehicle to this date is made with negative caster.
2) an out of aligned car could wear the tires in a certain pattern..inside worn faster..outside worn faster..middle worn faster etc.. this would throw off the balancing of your rims/tires and therfor cause a shake. not because of alignemtn..but because of an out of balance tire. so the timeline goes liek this.. alignment out of spec> wore tires unevenly>tires now out of balance. the cause is the alignemnt..the problem is balancing..the solution is aligment and new tires or balancing.
an out of balance tire will normally shake at higher speeds...50-90 mph or somewhere in that genaral area.
a slip belt or defective tire will normally shake at low speeds...5-30mph. and 90 percent of the time that slipped belt will cause the vehicle to pull/drift/wander to the side that the tire is on. so Right pull will be the RF tire being bad.
a tie-rod will not cause a shake at cruising speed. if you wnat to be technical again the only way a tie-rod "could" possibly cause a shaking or vibration condition is with load change. lets say you have 1 inch of tie-rod movement. during a hard bump the tie-rod "might" pop the full 1 inch play. this would be felt possibly with a steering wheel change. after that said bump the tie-rod will go back to its resting spot. once again you will see the steering wheel change. but that is it..it will not constantly cause a shaking condition. it will pop once the full movement and then pop back the full movement. it might even have a ripple effect kind of feeling.
but this is being picky on my part.. im just trying to inform others of these scenerios. alot of people get thigns confused and there is alot to be aware of. alot of things could cause shakes, squeels, clunks, rattles, pops. the more info that is out there the more people are aware.
i can already tell this problem is going to be a bad tire. OP will come back and say " yes it is a lower speed vibration". its time for 2 or 4 new tires OP
Modified by waabaah at 1:48 AM 10-6-2009