So a couple weeks ago my FC started making an odd noise every once in awhile. It almost sounded like something rubbing against the back of my rims. I never heard it more than a few seconds and not even that often so I didn't think much of it. At some point it got worse and started rattling and sounded like something broke off and rolled on the ground. Being in a terrible part of town for traffic and in the middle of a construction zone I wasnt able to get out and look around. Afterwards the noise went away and everything seemed fine. Well now there is a terrible vibration going on and I can't figure out what it is. It only occurs when I accelerate, when I let off the accelerator just right I can't feel it at all. but as soon as I give it any more gas it vibrates like crazy, in the wheel, the pedals, and the shifter seems to vibrate more too. Its super loud and not fun to deal with. Anyone els had this problem? I got underneath it and I didn't notice anything out of the ordinary. I do have a relatively large exhaust leak (what I first thought was causing the vibrations) that I'm fixing soon. But other than that I'm not sure what it could be. If anyone has any ideas I'll look into them. I appreciate it guys!!

 

Could be the drive shaft, does it becomes worst the faster you go?

 

Yeah sorta. When Im in parking lots I dont notice. Id say I notice most around 40mph.

 

It could be the driveshaft are bad , im saying this because had the same experience as yours when i reach 40mph and it feels like the whole car are vibrating. check the u-joints of the driveshaft

 

Will do. Thanks!!!

 

Check the U-joints AND check the bolts that hold the driveshaft to the rearend. I might also check the bolts and joints on teh axles.

Rob R.