ok,
another thread about vibration! I put EBC Greenstuff pads on my car early this summer and they warped the shit out of my rotors(or so I thought). So I threw some EBC slotted rotors on and replaced the rear calipers/pads. I still need to replace the front calipers and pads all around...but I dont think that has anything to do with my problem.
The problem is speed-based, roughest around 65MPH on highways.
It is more rough during braking.
I CAN feel the vibration in the steering wheel.
The only way I can describe the way it feels is like...at high speeds it shakes the whole car 5-6Hz and at low speeds it feels like warped rotors hitting at different times. Almost as if the car is attempting to pick up one wheel and walk while I decelerate. Thats probably hard to imagine for most...but its the only way i can describe it.
So I pulled the tires off it today after checking the alignment (which seems fine, 1/8" toe-out on both front and rears) and started playing with the wheel assemblies.
if I crank the driver side wheel assembly left and right (as if the car were turning) there is a slight play...just enough to feel and make a light clunking noise. This is not present on the passenger side. When rotating the wheel assembly (as if the tire were spinning) there is approximately 3 degrees of rotational play (one rotor vent worth). Are either of those normal???
Finally, while driving - beginning at low speeds - there is a hum from the rear end. It almost sounds like studded tires but more steady...not clicky. What could be making a humming/rubbing noise in the rear?
I have to head back to school on Monday so I was hoping to pick up some parts and go nuts this weekend with it. Anyone have any ideas?
Thanks ahead of time!
EDIT#1
I just checked the front axles as well. The passenger side axle has some play in the transaxle-side connection(not the part that connects to the wheel assembly). It moves up, down, left or right about 1/8" to 3/16" when I pull on it in different directions. Does that seem like bad bearings? Even so, would that cause vibration at speed and uneven braking? Im getting so confused here!
EDIT#2
Well I just spent a few hours trying to re-thread my lug nuts and bolts. They somehow gauled like crazy when I took them off. Looks like Ill be adding lugs and nuts to my large list of things to purchase for my POS. I may not have the time to diagnose this problem and do the repairs before I go back to school so it may end up being a shop item. I stress too much over little things like this!
another thread about vibration! I put EBC Greenstuff pads on my car early this summer and they warped the shit out of my rotors(or so I thought). So I threw some EBC slotted rotors on and replaced the rear calipers/pads. I still need to replace the front calipers and pads all around...but I dont think that has anything to do with my problem.
The problem is speed-based, roughest around 65MPH on highways.
It is more rough during braking.
I CAN feel the vibration in the steering wheel.
The only way I can describe the way it feels is like...at high speeds it shakes the whole car 5-6Hz and at low speeds it feels like warped rotors hitting at different times. Almost as if the car is attempting to pick up one wheel and walk while I decelerate. Thats probably hard to imagine for most...but its the only way i can describe it.
So I pulled the tires off it today after checking the alignment (which seems fine, 1/8" toe-out on both front and rears) and started playing with the wheel assemblies.
if I crank the driver side wheel assembly left and right (as if the car were turning) there is a slight play...just enough to feel and make a light clunking noise. This is not present on the passenger side. When rotating the wheel assembly (as if the tire were spinning) there is approximately 3 degrees of rotational play (one rotor vent worth). Are either of those normal???
Finally, while driving - beginning at low speeds - there is a hum from the rear end. It almost sounds like studded tires but more steady...not clicky. What could be making a humming/rubbing noise in the rear?
I have to head back to school on Monday so I was hoping to pick up some parts and go nuts this weekend with it. Anyone have any ideas?
Thanks ahead of time!
EDIT#1
I just checked the front axles as well. The passenger side axle has some play in the transaxle-side connection(not the part that connects to the wheel assembly). It moves up, down, left or right about 1/8" to 3/16" when I pull on it in different directions. Does that seem like bad bearings? Even so, would that cause vibration at speed and uneven braking? Im getting so confused here!
EDIT#2
Well I just spent a few hours trying to re-thread my lug nuts and bolts. They somehow gauled like crazy when I took them off. Looks like Ill be adding lugs and nuts to my large list of things to purchase for my POS. I may not have the time to diagnose this problem and do the repairs before I go back to school so it may end up being a shop item. I stress too much over little things like this!