Sticking Brake Calipers & Bent Rim / In Neutral, do Driveshaft vibrations diminish?
Greetings,
Trying to distinguish between front end issues vs possible driveshaft issues after reinstalling DS with new guibo & CSB. (It could be multiple problems of course, and yes car was vibrating before I removed the driveshaft.)
From searching the forums, I saw some comments that pushing in the clutch will stop driveshaft symptoms, but did not see this for automatics also.
Can anyone advise? If I shift auto tranny into neutral and the symptoms/vibrations don't change, can I rule out driveshaft issues?
It's hard to tell whats vibrating, but if I messed up reinstalling the DS I don't want to confirm that by trashing the new guibo/CSB and eventually the u-joints.
Also, the DS was out to replace the tranny selector shaft seal so the whole engine/driveline has been moved around recently and put back this weekend ... and yes I am resigned to going back under and redoing everything. Que sera, sera...
Main question right now: Does the lack of change when going to neutral help narrow down or eliminate possible driveline issues?
SYMPTOMS - 04 325i, 107k miles, gm tranny -390r
Note, the front end was vibrating at highway speeds from 65 to 75/80 mph BEFORE I removed the DS, and is still vibrating after the reinstall but now I am noticing vibrations at lower non-highway speeds.
I swapped two good wheels (with the same Bridgestone tires) from my Dad's e46 to my fronts and no real difference (my rims on his car drive fine on smooth roads). Suspension is new (10k miles), but with original control arms, tie rods & end links. The CA''s & TR''s still tight with no play, but I have new end links on the way due to a torn boot.
Vibration is through steering wheel mostly, but some through my feet / knees (but not the pedals) and some through the passenger headrest. Seems to be at all speeds above 25 mph and is worse on highway at 65 to 75/80 mph. Does NOT seem load dependent, and it happens when coasting in neutral. There is no rythmic thumping sound, like an unbalanced washing machine.
It's also not that bad of a shake, e.g., the coins in the tray behind the e-brake are not rattling. Ive had out of balance tires shake much worse, but even so something just ain't right. The steering wheel vibrates for sure, but I really can't tell if the headrest "vibration" is just normal baseline vibration.
Sorry for the long post,
Greetings,
Trying to distinguish between front end issues vs possible driveshaft issues after reinstalling DS with new guibo & CSB. (It could be multiple problems of course, and yes car was vibrating before I removed the driveshaft.)
From searching the forums, I saw some comments that pushing in the clutch will stop driveshaft symptoms, but did not see this for automatics also.
Can anyone advise? If I shift auto tranny into neutral and the symptoms/vibrations don't change, can I rule out driveshaft issues?
It's hard to tell whats vibrating, but if I messed up reinstalling the DS I don't want to confirm that by trashing the new guibo/CSB and eventually the u-joints.
Also, the DS was out to replace the tranny selector shaft seal so the whole engine/driveline has been moved around recently and put back this weekend ... and yes I am resigned to going back under and redoing everything. Que sera, sera...
Main question right now: Does the lack of change when going to neutral help narrow down or eliminate possible driveline issues?
SYMPTOMS - 04 325i, 107k miles, gm tranny -390r
Note, the front end was vibrating at highway speeds from 65 to 75/80 mph BEFORE I removed the DS, and is still vibrating after the reinstall but now I am noticing vibrations at lower non-highway speeds.
I swapped two good wheels (with the same Bridgestone tires) from my Dad's e46 to my fronts and no real difference (my rims on his car drive fine on smooth roads). Suspension is new (10k miles), but with original control arms, tie rods & end links. The CA''s & TR''s still tight with no play, but I have new end links on the way due to a torn boot.
Vibration is through steering wheel mostly, but some through my feet / knees (but not the pedals) and some through the passenger headrest. Seems to be at all speeds above 25 mph and is worse on highway at 65 to 75/80 mph. Does NOT seem load dependent, and it happens when coasting in neutral. There is no rythmic thumping sound, like an unbalanced washing machine.
It's also not that bad of a shake, e.g., the coins in the tray behind the e-brake are not rattling. Ive had out of balance tires shake much worse, but even so something just ain't right. The steering wheel vibrates for sure, but I really can't tell if the headrest "vibration" is just normal baseline vibration.
Sorry for the long post,