rear vibrations...
Thread Starter
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Joined: Mar 2007
Posts: 79
Likes: 0
From: Burbank CA
rear vibrations...
So if fixed my oil pressure problems... i think... (it hasn't spiked recently) but here a new thing the other day I was driving along and went over one of those famous california speed restrictors... the hole in the road that moving techtonic plates seem to like making... nothing happened bad, i saw it in time and slowed down but there the deal...
and maybe i'm putting two and two together and getting four and a half here...
but the rear end seems to be vibrating at speeds over 50mph. the engine runs fine, no shudders - the vibration seems to emmit from the rear end, possible driveshaft i'm thinking as when slowing down from 70 if the engine was revving a bit the vibration happens a bit also. nothing happens when cruising or pottering round town...
any ideas? you've all been more than helpful already!
and maybe i'm putting two and two together and getting four and a half here...
but the rear end seems to be vibrating at speeds over 50mph. the engine runs fine, no shudders - the vibration seems to emmit from the rear end, possible driveshaft i'm thinking as when slowing down from 70 if the engine was revving a bit the vibration happens a bit also. nothing happens when cruising or pottering round town...
any ideas? you've all been more than helpful already!
Burning Brakes
Joined: Jan 2006
Posts: 957
Likes: 6
From: Burlington wisconsin
So if fixed my oil pressure problems... i think... (it hasn't spiked recently) but here a new thing the other day I was driving along and went over one of those famous california speed restrictors... the hole in the road that moving techtonic plates seem to like making... nothing happened bad, i saw it in time and slowed down but there the deal...
and maybe i'm putting two and two together and getting four and a half here...
but the rear end seems to be vibrating at speeds over 50mph. the engine runs fine, no shudders - the vibration seems to emmit from the rear end, possible driveshaft i'm thinking as when slowing down from 70 if the engine was revving a bit the vibration happens a bit also. nothing happens when cruising or pottering round town...
any ideas? you've all been more than helpful already!
and maybe i'm putting two and two together and getting four and a half here...
but the rear end seems to be vibrating at speeds over 50mph. the engine runs fine, no shudders - the vibration seems to emmit from the rear end, possible driveshaft i'm thinking as when slowing down from 70 if the engine was revving a bit the vibration happens a bit also. nothing happens when cruising or pottering round town...
any ideas? you've all been more than helpful already!
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
First step: Take the car by a tire shop, and have them balance ALL rims and tires. It's a good thing to do often anyway as tires wear they unbalance. That way, you're also checking to see if you do have a bent rim, or if you have an out of balance tire.
Second step: Perform this if no balancing issues have been found. Have all six U-joints checked. It's probably one at the rear end as you said but a drive shaft U-joint going bad will cause some bad vibrations, and they can start in the range anywhere from 20 to 50 depending on how bad the joint is.
Second step: Perform this if no balancing issues have been found. Have all six U-joints checked. It's probably one at the rear end as you said but a drive shaft U-joint going bad will cause some bad vibrations, and they can start in the range anywhere from 20 to 50 depending on how bad the joint is.
Safety Car
Joined: Sep 1999
Posts: 4,930
Likes: 11
From: AnyTown NJ
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Take it to a tire shop that has one of these......it balances and checks for out of round.....there's a saying, "even a square wheel can be balanced". 
http://www.gsp9700.com/pub/technical/4127T/4127t.cfm
http://www.gsp9700.com/pub/technical/4127T/4127t.cfm
Le Mans Master
Joined: Dec 2006
Posts: 8,837
Likes: 1,028
First and easiest to check/exclude.
