Service bulletin 3870
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10020238 |
| Published by NHTSA | 2006-08-21 |
| Manufacturer's number | 3870 |
| NHTSA component | POWER TRAIN:CLUTCH ASSEMBLY |
NHTSA's summary
CLUTCH PEDAL FADE OR CLUTCH WILL NOT DISENGAGE TYPICALLY WHEN TOWING. *TT
The document
No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.
Components
Transmission and driveline, Clutch
| CHEVROLET SILVERADO | 2001, 2002, 2003, 2004, 2005, 2006 |
|---|---|
| GMC SIERRA | 2001, 2002, 2003, 2004, 2005, 2006 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 01-07-30-042H | 2018-05-21. Service bulletin. This information was created to inform the technician that the 2-3 upshift and the 3-2 downshift clunk is caused by the releasing of the 2-4 band and application of the 3-4 clutch assembly during an upshift. Also during a 3-2 downshift, the releasing of the 3-4 clutch during the application of the 2-4 band, can cause torque reversal down the output shaft creating a clunk. This is a normal condition. |
|---|---|
| PIP5072 | 2017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that have slip in forward ranges immediately after replacing the input housing. Technician will inspect the 3-4 clutches and the forward clutch oil feed passages for leakage between circuits. Technician should apply regulated compressed air to the 3-4 clutch feed hole and the forward clutch feed hole one at a time with the input housing. Technician will need to replace the input housing if there is an air leak 3-4 clutches. |
| 3021 | 2004-08-23. Service bulletin. CLUTCH PEDAL ASSEMBLY SQUEAK NOISE. THE CONDITION TYPICALLY OCCURS DURING HOT AMBIENT TEMPERATURE. *TT |
| 100401 | 2001-05-30. Service bulletin. THIS MESSAGE STATES THAT THE CLUTCH PEDAL MEG, OR THE FLOOR, AFTER TOWING OR HAULING HEAVY LOADS UP LONG GRADES AND OCCURS EASIER AT HIGH TEMPERATURES ON 1996 THROUGH 1999 PICKUPS. *TT |