Automotive Forums .com - the leading automotive community online! Automotive Forums .com - the leading automotive community online!
Automotive Forums .com - the leading automotive community online! 
-
Latest | 0 Rplys
Go Back   Automotive Forums .com Car Chat > Buick > Roadmaster
Reply Show Printable Version Show Printable Version | Email this Page Email this Page | Subscription Subscribe to this Thread
 
Thread Tools Search this Thread
Old 02-07-2012, 05:33 PM   #1
GT55
AF Newbie
 
Join Date: Sep 2009
Location: In Texas, Texas
Posts: 26
Thanks: 0
Thanked 0 Times in 0 Posts
95 Roadmaster noise, vibration in rear

Got a lot of noise and vibration in the rear portion of the vehicle. Excelleration is normal but when the vehicle comes down to normal speeds it starts to vibrate and shack the bagebers out of the vehicle. Step on the gas and the vibration goes away. Anyway I am presuming it will be the U-joint/s. Have to put it on some jack stands to check maybe this friday. Are these U-joints standard or are they going to be different. Any special tools needed? Anything else I should look for while it's off the ground. Other rear end checks? Constructive comments always welcome....
Thanks Guys
GT
GT55 is offline   Reply With Quote
Old 02-07-2012, 08:57 PM   #2
Blue Bowtie
Registered Offender
 
Blue Bowtie's Avatar
 
Join Date: Mar 2006
Location: Rural
Posts: 5,974
Thanks: 3
Thanked 247 Times in 243 Posts
Re: 95 Roadmaster noise, vibration in rear

Check the pinion bearings. If there is play in the yoke, there is no longer any preload on the pinion bearings. That's a pretty involved job, but worth saving the 8" axle.
__________________
Permanent seat assignment on the Group W bench...
Automotive Forums Survival Guide
Blue Bowtie is offline   Reply With Quote
Old 02-08-2012, 04:53 PM   #3
GT55
AF Newbie
Thread starter
 
Join Date: Sep 2009
Location: In Texas, Texas
Posts: 26
Thanks: 0
Thanked 0 Times in 0 Posts
Re: 95 Roadmaster noise, vibration in rear

Quote:
Originally Posted by Blue Bowtie View Post
Check the pinion bearings. If there is play in the yoke, there is no longer any preload on the pinion bearings. That's a pretty involved job, but worth saving the 8" axle.
Thanks Bowtie: I don't have a manual but when I get it on jack stands I will be able to check everything out. If it is the ring and/or pinion gear, I will need a manual. I have not done the preload shim stock deal on a rear end in a LONG time. So I will need a manual and a boat load of help from the fine folks here. Once I do some troubleshooting will be able to pin point the help needed. I do have shop and the time to do the job right.
Again, Thanks Bowtie
GT55 is offline   Reply With Quote
Old 02-10-2012, 07:35 PM   #4
GT55
AF Newbie
Thread starter
 
Join Date: Sep 2009
Location: In Texas, Texas
Posts: 26
Thanks: 0
Thanked 0 Times in 0 Posts
Re: 95 Roadmaster noise, vibration in rear

Quote:
Originally Posted by Blue Bowtie View Post
Check the pinion bearings. If there is play in the yoke, there is no longer any preload on the pinion bearings. That's a pretty involved job, but worth saving the 8" axle.
OK BOWTIE;
Here we go. The Buicks on stands. When I start it and put it in drive there is a noticable clunk noise in the rear. Then I put it in neutreal and the noise goes away. Shift it to reverse and here the clunk again.
I stopped the car. Got out and grabbed one of the rear tires and rolled it forward and backwards. You can here the faint clunk noise. While under the vehicle I looked at the U-joints, and drive shaft. U-joints were tight with no play. There was a very small leak at the transmission tail shaft seal, but not the problem. The tranny fluid level is good. I also tried to wiggle both rear tires up, down and side to side. To check for possible wheel bearing problems. No wiggle. Last thing I checked was the oil level in the rear end. Good.
Any comments on what to check next while it's up in the air?
On another note, I now have a SQUALLING pully. Found it with some spray lube. It's the pulley below the alternator and above AC compressor. Any idea how to pull this thing.
Any more problems and I think I'll put a bullet thru the block

Again Thanks Bowtie
GT55 is offline   Reply With Quote
Old 02-11-2012, 11:30 AM   #5
Blue Bowtie
Registered Offender
 
Blue Bowtie's Avatar
 
Join Date: Mar 2006
Location: Rural
Posts: 5,974
Thanks: 3
Thanked 247 Times in 243 Posts
Re: 95 Roadmaster noise, vibration in rear

If the input pinion has no noticeable play, there may be a problem with the differential gears (spiders and side gears) or ring gear clearance. It might be time to open it up and drain the old gear oil then take a good look.
__________________
Permanent seat assignment on the Group W bench...
Automotive Forums Survival Guide
Blue Bowtie is offline   Reply With Quote
 
Similar Threads
Thread Thread Starter Forum Replies Last Post
Engine noise and vibration jpar1983 Intrigue 10 12-28-2010 07:33 AM
2003 e150 vibration sound when accelerating webpage1111 Econoline 0 07-13-2010 12:50 PM
Rear End Noise + Vibration skizot722 LS | MKZ 5 06-01-2007 03:49 PM
1996 Roadmaster Twilight no rear tail light Dougn2007 Roadmaster 1 02-07-2007 08:31 PM

Reply

POST REPLY TO THIS THREAD


Bookmarks
Go Back   Automotive Forums .com Car Chat > Buick > Roadmaster

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 05:05 PM.

Community Participation Guidelines | How to use your User Control Panel

Powered by: vBulletin | Copyright Jelsoft Enterprises Ltd.
 
 
no new posts