Front end shake when letting off of accelerator..

[FoxxRocket]

Hi guys,, its been awhile, but i have a problem that has me stumped,,,

I may need a front end alignment, but I have a real bad shake and "rumbling" when at highway speeds and letting off the accelerator., and if you accelerate again, the shaking stops... hmmm...

In another question, is the stabilization bar suppose to have any rotational play in it?

Thanks a million guys!

-Chris

 

[udmsvt]

#1: loose motor mount? or trans mount?

#2 no idea!

 

[FoxxRocket]

bro.. recently the truck was hit from behind and I kinda thought maybe there was a motor mount broke or loose, but i didnt know if that would cause a shake under deceleration....!
Have you had this problem before!?
-Chris

 

[udmsvt]

yes. the truck had hit a sign and a fence. was fixed at the dealer wile the boidy work was done. flywheel and starter were replaced at the same time, but were unrelated to the accident. i never saw the paperwork so i dont know what it was, but i do remember it. it also did it every once in a while if you mased it from a stoplight, you would have to let up then give it gas again for it to go away. it was almost like the engine was out of balance.

in that accident, the damage wasnt huge, but it was to the font end--NO actual frame damage though.