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Old 08-15-2007, 10:11 PM   #1
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The Duramax rattle/clunk

My 2006 Duramax has 21K miles and has had an annoying clunk in the front suspension for some time, most notable while turning over rough pavement. Took it to the dealer Monday and they said "bad steering sector" and replaced it. Took it back this morning because the problem is worse. This afternoon they tell me they are at a loss and have called GM for help. I Googled Durmax bump and found a lot of info indicating this problem has been around for several years and GM has not fixed it yet.

Several months ago I had a driveline clunk. Took it to the dealer and they replaced the entire 2 piece drive shaft. Googled this today also and found that GM is now replacing the slip yoke with one that is nickel plated. I stilll have a small clunk in the driveline and just assumed this is normal.

Now, are any of you DA owners having these problems? If so, were they fixed to your satisfaction and how?

Thanks

Greg
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Old 08-15-2007, 11:44 PM   #2
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Try searching for "intermediate shaft" at the following sites:
http://www.thedieselpageforums.com/tdpforum/index.php

GM-Diesel.com - powered by vBulletin

Diesel Place - Duramax Diesel Discussion Forums

All are forums with plenty of help.
GM knows they have a design problem, and they are not doing anything about it because they say it is not a "safety concern".
There gets to be a few thousandths wear in the front end and steering column, and the rattle develops...worse in cold weather...and you can spend lots of dollars after the warranty expires on it, or live with it until or unless GM decides they have to do something about it.
At least that was the answer last time I looked and that was about 40,000 miles ago.
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Old 08-16-2007, 05:19 AM   #3
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i fixed both my clunks, the rear was fixed by installing the huge one piece aluminum drive shaft and rubber overload spring snubbers.

the front i did myself by splitting the steering shaft and packing it with heavy lithium grease.

no clunks from either end for quite a while now.

john
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Old 08-16-2007, 06:28 AM   #4
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Quote:
Originally Posted by john hd
the front i did myself by splitting the steering shaft and packing it with heavy lithium grease.
John, is this the small U-joint at the base of the steering column? If so, it's been a known issue on the GM front-drive cars for many years, and the fix is to remove it, grease it, and reinstall it. It makes a rumbling popping sound as the wheel is turned.
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Old 08-16-2007, 05:27 PM   #5
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Picked up the truck this afternoon. They claim the GM fix of a new shaft and bearing will do the trick. Also say they installed the bearing incorrectly the first time which is why the problem did not go away. Definitely better now but who knows what the future has in store.

Greg
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Old 08-16-2007, 06:13 PM   #6
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I wonder if this is something not exclusive to the Duramax. From what I've read, it would seem to me that any GM truck, maybe even 1/2 ton could develop this issue in the front steering.

Like John, I had a clunk in the rear springs too. Took it in to the dealer before the warranty ran out and they replaced the spacers on the leafs in the rear and it's gone now. I only have about 11k on it right now, so it sounds to me I have some things to look forward to.
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Old 08-16-2007, 06:19 PM   #7
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Thanks for the heads up. I have about same milage on my 2006 Silverado. Have not noticed anything unusual, but now I will keep my ears open. Wish we could define "clunk" better. Was it very obvious?

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Old 08-16-2007, 06:26 PM   #8
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Very obvious. I could feel it and hear it. If you have it you will know it.

Greg
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Old 08-16-2007, 07:37 PM   #9
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Quote:
Originally Posted by overlander63
John, is this the small U-joint at the base of the steering column? If so, it's been a known issue on the GM front-drive cars for many years, and the fix is to remove it, grease it, and reinstall it. It makes a rumbling popping sound as the wheel is turned.
nope, it is the sliding shaft that goes thru the fire wall.

it is the one designed to collapse in the event of a collision.

easy fix, take it apart, grease, reinstall.

i was gonna drill and tap it for a zerk but i am too lazy.

john
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Old 08-16-2007, 08:00 PM   #10
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Hmmm... ~54K on my (early, LB7) 2004 and no clunking. It makes lots of other steering kind of noises. Is yours 4WD, long, short bed, CC or regular cab?
-KL
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Old 08-16-2007, 08:56 PM   #11
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I've noticed the same problem with my '06 with 35K on it. Will have my dealer address this with the next service date and report back. Thanks for the info on the recent fix. Please keep us posted if the symptoms return.
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Old 08-16-2007, 09:19 PM   #12
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Quote:
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Hmmm... ~54K on my (early, LB7) 2004 and no clunking. It makes lots of other steering kind of noises. Is yours 4WD, long, short bed, CC or regular cab?
-KL

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Old 08-16-2007, 10:28 PM   #13
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Yup, my 2002 1500 has the steering column rattle/clunk. If you spend any time at all on a GM pickup forum, you'll hear complaints about it, seems like most if not all models.
I've been living with mine since I know what it is, I plan on doing the zerk fitting thing.
Dave
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Old 08-17-2007, 10:53 AM   #14
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2004 2500HD CrewCab:
Replaced R & L rear view mirrors due to vibration
4 trips to dealer because truck died-finally replaced crank sensor to fix
Steering rattle: "shaft loose"- "steering intermediate replaced"
Wiper module replaced
Mirror sensor (temperature stuck) replaced
Passenger window motor slow- fixed or replaced
Passenger door hard to close- re-aligned
-----All done within the 1st year of ownership------

The following occurs after warranty period:
Speedometer inaccurate- replaced entire module: $400 part
Steering rattle turns to clunk: replaced shaft $150
Check engine light sensor goes out: replace $100
ABS motor dies: $700 part

On the last trip to the mechanic, with the ABS problem, he suggested trying to get GM to pay for the part given our history of repairs. My husband called GM, told him we weren't under warranty but had had enough problems with our truck to warrant the reimbursement of a 3 year old ABS motor going out. He said to have the dealer diagnose and he will see what he can do. A hundred extra dollars later, with a dealer diagnosis in hand, he says, "Sorry you aren't under warranty, we can't do anything".

My husband spoke to someone else above him, was told the same thing, and eventually we received $200 towards our next maintenance visit. I'm pretty disgusted with GM's customer service. I have been raised on GM, I bought GM, and now? Too bad I really love my truck.
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