question for gm-tech or others

[slimjim2525]

I have an 04 silverado 5.3l ext cab 4x4. I love the truck, it now has 14k on it. I have developed the driveline clunk. It's driving me nuts. I have read a lot of the posts here on the topic. My question is if I bring it to the dealer are they gonna do anything to help? I read one post where GM put a response that this was normal and no action is needed. What is the general accepted belief to what the problem is?

[budhayes3]

Does anybody have a fix for this? And are we all talking about the same clunks. My truck makes so many different noises, depending on the situation, and I've always heard "normal, normal, normal" from the dealer. Some folks grease a slip yoke that sounds good until the first time it shifts, switching to the autotrack transfercase fluid was an early attempt to remedy the driveline clunk...now it's just real expensive dealer only stuff that we have to use...or else who knows what kind of catostrophic failure that the transfer case may experience. I've had silicone pads installed on my leaf springs to fix a slapping noise, the trans logic has been reflashed to work on the driveline clunk, the list goes on.

 

But the truck keeps going, I just keep driving it...may be noisy, but it is a truck. I just keep installing performance mods for me to fixate on to try to keep my mind off of the OEM issues....(one last time...what did your vavlesprings sound like after your cam install?...J/K )

[Pewter Pro-Tec]

When I went in for the tailgate cable recall, they ordered the new slip yoke for me. It took about a month to get in, the dealer said it was on backorder?

 

Anyways like I said after a month they call me and in one hour my truck has a brand new slip yoke and u-joint.

 

Changed it in December sometime, and so far no noise.

 

It should be warranteed and the dealer said there was a technical service bulletin on it, but sorry, don't know the number of the TSB or the specifics, just that it's supposed to fix a "squawk" noise. Yep, that's the word wriiten on my receipt.

[GM-Tech]

Here's the first part of one TSB on a driveline clunk/squawk. Not sure if this is what you have or if it's something different...

 

--------------------------------

 

Clunk, Bump or Squawk when Vehicle Comes to Complete Stop or Accelerating from Complete Stop or Accelerating from Complete Stop (Replace Rear Drive Shaft Nickel-Plated Slip Yoke) #01-04-17-004B - (Jan 5, 2005)

 

1999-2000 Cadillac Escalade (Old Style)

 

2002-2004 Cadillac Escalade, Escalade EXT

 

2003-2004 Cadillac Escalade ESV

 

1996-1999 Chevrolet 1500 Series Extended Cab Short Box Pickup (Old Style)

 

1996-1999 Chevrolet 1500 Series Regular Cab Pickup and Utility Models (Old Style)

 

1999-2002 Chevrolet Silverado Extended Cab Short Box (New Style)

 

1999-2004 Chevrolet Silverado 1500 Series Regular Cab (New Style)

 

2000-2004 Chevrolet 1500 Series Avalanche, Suburban and Tahoe

 

2001-2004 Chevrolet Silverado 2500/3500 Series Regular Cab with Long Bed or Extended Cab (New Style)

 

2001-2004 Chevrolet Silverado 2500 Series Crew Cab, Short Box (New Style)

 

1996-1999 GMC 1500 Series Extended Cab Short Box Pickup (Old Style)

 

1996-1999 GMC 1500 Series Regular Cab Pickup and Utility Models (Old Style)

 

1999-2002 GMC Sierra Extended Cab Short Box (New Style)

 

1999-2004 GMC Sierra 1500 Series Regular Cab (New Style)

 

2000-2004 GMC 1500 Series Yukon, Yukon XL

 

2001-2004 GMC Sierra 2500/3500 Series Regular Cab with Long Bed or Extended Cab (New Style)

 

2001-2004 GMC Sierra 2500 Series Crew Cab, Short Box (New Style)

 

2003-2005 HUMMER H2

 

with Four Wheel Drive (4WD) or All Wheel Drive (AWD) and One-Piece Propeller Shaft ONLY

 

This bulletin is being revised to add Cadillac Escalade (Old Style) and HUMMER H2 to the Models section. Please discard Corporate Bulletin Number 01-04-17-004A (Section 04 -- Driveline/Axle).

 

Condition

Some customers may comment on a clunk, bump or squawk noise when the vehicle comes to a stop or when accelerating from a complete stop.

 

Cause

A slip/stick condition between the transfer case output shaft and the driveshaft slip yoke may cause this condition.

 

Diagnostic Tips

There are several resources in the electronic Service Information System which can provide the technician with information on diagnosis and repair of clunk conditions, and fix the customer's vehicle right the first time without unnecessary parts replacement. Some of the documents available in SI include:

 

• Symptoms - Propeller Shaft (SI Document ID #697266)

 

• Knock or Clunk Noise (SI Document ID #697290)

 

• Rear Drive Axle Noises (SI Document ID #700580)

 

• Launch Shudder/Vibration on Acceleration (Replace Propeller Shaft and Install a New Pinion Flange/Seal), Bulletin #02-04-17-001

 

• Information on 2-3 Upshift or 3-2 Downshift Clunk Noise, Bulletin #01-07-30-042

 

• Driveline Clunk When Stopping (Reprogram Powertrain Control Module (PCM), Bulletin #03-07-30-028

 

Correction

Replace the rear drive shaft slip yoke with a new nickel-plated slip yoke. See the parts table below.

[black98z71]

SO on a '98 which is way out of warranty, will they fix it for free b/c of the TSB? or is it just a bulletin to help them diagnose it easier?

[slimjim2525]

those are the exact symptoms that i have. Only when i come to a stop, or accelerate from a stop. I'll make an appointment tomorrow. Thank you.

[GM-Tech]

SO on a '98 which is way out of warranty, will they fix it for free b/c of the TSB? or is it just a bulletin to help them diagnose it easier?

 

<{POST_SNAPBACK}>

 

 

 

It's just information. It doesn't imply any extension of your warranty. Expect to pay on a 1998 vehicle.

[mcreyaufmiller]

Do you know the new part number for the nickel-plated slip yoke for the 98 extended cab/short bed?

[GM-Tech]

Here are all the part numbers. I didn't include them because it's in a table and it doesn't cut and paste well into one of these messages. Hope you can make sense of it...

 

 

Part Number

Description

Usage

 

12477702

Yoke Asm., Prop Shf Slip (with u-joint) , Nickel Plated

4WD/AWD 1500 Series Ext Cab Short Box Pickups (New Style and Old Style)

 

12477704

Yoke Asm., Prop Shf Slip (with u-joint) , Nickel Plated

4WD/AWD 2500 Series Ext Cab Short Box Pickups (New Style)

 

12479383

Yoke Asm., Prop Shf Slip (without u-joint) , Nickel Plated

 

Must Be Ordered With U-Joint Kit P/N 12479126

4WD/AWD 1500 Series Silverado, Sierra Regular Cab Pickups (New Style)

 

4WD/AWD 1500 Series Suburban, Avalanche, Yukon XL, Escalade EXT, Escalade ESV with AWD (New Style)

 

K1500 Series Regular Cab Pickup, Tahoe, Suburban, Escalade (Old Style)

 

12479384

Yoke Asm., Prop Shf Slip, (without u-joint) , Nickel Plated

 

Must Be Ordered With U-Joint Kit P/N 12479126

4WD/AWD 1500 Series Tahoe, Yukon, Escalade w/ 4WD or AWD (New Style)

 

12479385

Yoke Asm., Prop Shf Slip (without u-joint) , Nickel Plated

 

Must Be Ordered With U-Joint Kit P/N 12471510

4WD/AWD 2500HD/3500 Series Silverado and Sierra Regular Cab, Long Bed Pickups with 6.0L (RPO LQ4) Engine (New Style)

 

89058876

Yoke Asm., Prop Shf Slip (with u-joint) , Nickel Plated

4WD/AWD 2500HD Series Silverado and Sierra Crew Cab, Short Bed Pickups with 5-Speed Allison Transmission (RPO M74) (New Style)

 

4WD 2500HD/3500 Series Silverado and Sierra Extended Cab Long Bed Pickups with 5-Speed Allison Transmission (RPO M74) (New Style)

 

4WD 2500HD/3500 Series Silverado and Sierra Regular Cab, Long Bed Pickups with 5-Speed Allison Transmission (RPO M74 build date before 2/2004) (New Style)

 

4WD/AWD 2500HD Series Silverado and Sierra Extended Cab, Short Bed Pickups with 5-Speed Allison Transmission (RPO M74 build date before 2/2004) (New Style)

 

89058878

Yoke Asm., Prop Shf Slip (with u-joint) , Nickel Plated

4WD/AWD 2500HD/3500 Series Silverado and Sierra Extended Cab Pickups with 6.0L (RPO LQ4) Engine (New Style)

 

4WD 2500HD Series Silverado and Sierra Crew Cab, Short Bed Pickups with 6.0L (RPO LQ4) Engine (New Style)

 

89058880

Yoke Asm., Prop Shf Slip (with u-joint) , Nickel Plated

4WD/AWD 2500HD/3500 Series Silverado and Sierra Regular Cab, Long Bed Pickups with 5-Speed Allison Transmission (RPO M74 build date after 2/2004) or 6-Speed Manual Transmission (RPO ML6) (New Style)

 

4WD 2500HD Series Silverado and Sierra Extended Cab, Short Bed Pickups with 5-Speed Allison Transmission (RPO M74 build date after 2/2004) or 6-Speed Manual Transmission (RPO ML6) (New Style)

 

12479126

U Joint Kit

4WD/AWD 1500 Series Silverado, Sierra Regular Cab Pickups (New Style)

 

4WD 1500 Series Suburban, Avalanche, Yukon XL) (Escalade EXT, Escalade ESV with AWD (New Style)

 

4WD 1500 Regular Cab Pickup, Tahoe, Suburban, Escalade (Old Style)

 

Tahoe, Yukon, Escalade w/ 4WD or AWD (New Style)

 

12471510

U Joint Kit

4WD/AWD 2500HD/3500 Series Silverado and Sierra Regular Cab, Long Bed Pickups with 6.0L (RPO LQ4) Engine (New Style)

 

88964470

Yoke Asm., Prop Sft Slip (without U joint) Nickel Plated

 

Must be ordered with U joint kit P/N 88964507

HUMMER H2

 

88964507

U-Joint

HUMMER H2

[resqguy]

Any particular reason why this TSB doesn't include the 2001 Silverado 1500 ECLB 4wd?

[nalineeds24s]

What fixed my 2000 Escalade was the GM Blue Fluid, in the transfer case. Luckily for me I did not have to mess with the slip yoke, or U-joints.