04 burb back lash noise when up shifting

[pastor scott.com]

Ive been hearing a very slight back lash noise when im slowly taking off when it shifts into 3rd. Kind of like a u-joint would sound like with play. only have 6000 miles and all is tight. is this anything to worry about ??

 

 

thanks

Scott

[Rammer]

My 02 did the same thing, along as my new 05. Here's the TSB I have from the 02. This says 2004 and prior, but I'm sure GM updated it to include the 05's as well.

 

A/T - 4L60-E/4L65-E, 2-3/3-2 Shift Clunk Explanation

 

Bulletin No.: 01-07-30-042B

 

Date: January 16, 2004

 

INFORMATION

 

Subject:

Information on 2-3 Upshift or 3-2 Downshift Clunk Noise

 

Models:

2004 and Prior Light Duty Trucks

2003-2004 HUMMER H2

with 4L60E or 4L65E Automatic Transmission (RPOs M30, M32)

 

Supercede:

 

This bulletin is being revised to add the 2004 model year. Please discard Corporate Bulletin Number 01-07-30-042A (Section 07 Transmission/Transaxle).

 

Some vehicles may exhibit a clunk noise that can be heard on a 2-3 upshift or a 3-2 downshift.

 

During a 2-3 upshift, the 2-4 band is released and the 3-4 clutch is applied. The timing of this shift can cause a momentary torque reversal of the output shaft that results in a clunk noise. This same torque reversal can also occur on a 3-2 downshift when the 3-4 clutch is released and the 2-4 band applied. This condition may be worse on a 4-wheel drive vehicle due to the additional tolerances in the transfer case.

 

This is a normal condition. No repairs should be attempted

[pastor scott.com]

Thanks

 

Thats what I wanted to hear (no repairs needed)

 

I love this page !!!

 

 

Scott