rear end clank
04-05-2004, 02:02 PM
#1
TECH Fanatic
Thread Starter
iTrader: (2)
Join Date: Feb 2004
Location: Houston
Posts: 1,760
Likes: 0
Received 0 Likes
on
0 Posts
rear end clank i have a 96 A4 and when i am driving and i get off the gas and hit the brakes, then accelerate again, i hear this metal clank noise, only happens at low speeds, like in traffic.
04-06-2004, 12:33 PM
#2
Launching!
iTrader: (2)
Join Date: Aug 2003
Location: Norco, Louisiana
Posts: 211
Likes: 0
Received 0 Likes
on
0 Posts
Sounds like it maybe a problem with the backlash setup. Have you popped the rear cover open yet and checked to make sure the ring and pinion teeth are ok? Also you may want to checked you calapers and brakes. I have seen before where a loose brake pads would cause that too. Also when was the last time you changed/checked your U-joints?
Nakoz
Nakoz
04-06-2004, 02:06 PM
#3
TECH Fanatic
Thread Starter
iTrader: (2)
Join Date: Feb 2004
Location: Houston
Posts: 1,760
Likes: 0
Received 0 Likes
on
0 Posts
well i just bought the car, some one said it might be my tranny mount, but i don't think it is the brake pads, i was thinking maby the ring and pinion, i don't think the u joints, i had one go out on my truck, and all it did was squeek, but it is possible.
04-08-2004, 03:50 PM
#4
Im having sort of the same problem only: I only hear the clank noise when i come to a stop, you can kind of feel it tug, it FEELS like downshifting when you stop and it makes the noise... I found out that was my rear brakes. My rear end however, clanks when i go from neutral to drive, or reverse. I dont mean to jack the thread but anyone have an opinion on what part of the rear could be making this noise?
04-11-2004, 06:37 PM
#6
First off jack the car up. Attempt to turn the DS by hand. If it has excessive movement ensure that your pinion moves right with it and doesn't have ANY slop in it. If it does replace that ujoint IMMEDIATELY. Also inspect the front unjoint and ensure that the tranny yolk moves right with the driveshaft. Again ANY slop replace that ujoint IMMEDIATELY. A ujoint coming apart can tear up the car badly if it drops the driveshaft. A friend of mine with a LT1 swapped S10 had this happen and the DS knocked a hole in his gastank 
Other considerations here. Could be the output bushing in the tranny is shot. Could also be like others said the ring and pinion backlash is outta spec. Too many things to look at just on the internet. I would start with the DS though being that is usually where all the problems originate from. Good luck. If you do replace the ujoints then you have alittle bit of work ahead of you if you have never done it before. Basically you need a torch, a hammer, and a old socket about the size of the bearing cap on the ujoint if you want to do it the brute way 
Basically you have to heat right by that bearing cap on the DS and on the yolk because GM uses a liquid nylon lock on the factory ujoints and they won't come out unless you heat the thing really really good. Basically you will see a little tit on the yolk and DS where there is a small amount of the nylon left from when they injected it. Heat those caps until you see the nylon ooz out of there. Hope this helps if you have to replace the ujoints.
Other considerations here. Could be the output bushing in the tranny is shot. Could also be like others said the ring and pinion backlash is outta spec. Too many things to look at just on the internet. I would start with the DS though being that is usually where all the problems originate from. Good luck. If you do replace the ujoints then you have alittle bit of work ahead of you if you have never done it before. Basically you need a torch, a hammer, and a old socket about the size of the bearing cap on the ujoint if you want to do it the brute way Basically you have to heat right by that bearing cap on the DS and on the yolk because GM uses a liquid nylon lock on the factory ujoints and they won't come out unless you heat the thing really really good. Basically you will see a little tit on the yolk and DS where there is a small amount of the nylon left from when they injected it. Heat those caps until you see the nylon ooz out of there. Hope this helps if you have to replace the ujoints. 