| Subject: | Rattle-Type Noise from Transmission or Driveline Area Under Load (Replace Clutch Assembly) | 
| Models: | 2004-2006 Chevrolet Colorado (2WD) | 
| 2004-2006 GMC Canyon (2WD) | 
| with 3.5L L5 Engine (VIN 6 -- RPO L52) and Manual Transmission (RPO MA5) | 
Some customers may comment on a rattle-type noise that sounds like it is coming from the back of the cab in the driveline area. This condition mainly occurs when the vehicle is under load on a slight grade. The sound may be more prevalent as the vehicle warms up.
The condition can be duplicated in 3rd or 4th gear at about 1800-2300 rpm and may be mistaken for a transmission concern. The condition will only occur on 2-wheel drive vehicles equipped with a manual transmission.
The condition may be caused by a clutch damper high friction, allowing engine power pulses to resonate in the transmission and driveshaft, resulting in a rattle.
Do This  | Don't Do This  | 
|---|---|
Replace the clutch assembly ONLY.  | DO NOT replace the transmission for this concern.  | 
Replace the clutch assembly with P/N 24238965 following published procedures. Refer to Clutch Assembly Replacement in the Clutch Sub-section of SI. This clutch P/N is released for service only to address the described issue. DO NOT use this clutch P/N for other service concerns.
Part Number  | Description  | 
|---|---|
24238965  | Plate Asm., Clutch Press & Drvn (w/cvr)  | 
For vehicles repaired under warranty, use:
Labor Operation  | Description  | Labor Time  | 
|---|---|---|
K0800  | Disc And/Or Clutch Cover, Clutch - Replace  | Use Published Labor Operation Time  |