Service bulletin SB-39370
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 | 10078803 |
| Published by NHTSA | 2016-08-19 |
| Manufacturer's number | SB-39370 |
| Manufacturer's date | 2016-04-26 |
| NHTSA component | POWER TRAIN:MANUAL TRANSMISSION |
NHTSA's summary
39370 – SERVICE UPDATE BULLETIN. ON VEHICLES EQUIPPED WITH AN 8-SPEED AUTOMATIC TRANSMISSION, THE C-1-3-5-6-7 PISTON ASSEMBLY INTERNAL TO THE TRANSMISSION MAY BE OUT OF SPECIFICATION RESULTING IN POTENTIAL SHIFT QUALITY AND LONG TERM DURABILITY ISSUES. DEALERS ARE TO REPLACE THE TRANSMISSION.
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, Manual transmission
| CHEVROLET SILVERADO 1500 | 2016 (the catalog's model; the bulletin names a series or trim of it) |
|---|---|
| GMC SIERRA 1500 | 2016 (the catalog's model; the bulletin names a series or trim of it) |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 990420002L | 2021-08-09. Service bulletin. This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation. |
|---|---|
| 030729004L | 2019-05-20. Service bulletin. This informational bulletin provides normal operating characteristics and diagnostic information on Manual transmissions. |
| PIP5576 | 2018-10-15. Service bulletin. This Preliminary information communicatesSES lamp, setting DTC P0333 when shifting the Transmissionfrom park.DTC P0333 cansetdue to voltage from the Transmission park/neutral signal 1circuit bleeding into the knock sensor system circuits.If SI does not isolate the concern inspect the K20 ECM connector X2 looking for debris, connectorand or terminal concerns. |
| 03-07-29-004J | 2018-05-21. Service bulletin. This informational bulletin provides technicians with information to assist in identifying operating characteristics of manual transmissions that repair attempts will not change. |
| 17NA228 | 2018-05-21. Service bulletin. This informational bulletin provides information on Click or Tick Noise on 3-4 Shift that it should be considered a normal characteristic. |
| PIP5248B | 2017-03-21. Service bulletin. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON THE STEPS NEED TO DIAGNOSE AND REPAIR VEHICLES THAT MAY HAVE STALLING SHUDDER AND/OR HARD SHIFTING INTO 1ST GEAR OR REVERSE VIBRATION ON LAUNCH (WITH EXCESSIVE CRANKSHAFT END PLAY). TECHNICIAN WILL TEST TO DETERMINE IF THE CRANK SHAFT END PLAY IS WITHIN SPECIFICATION 0.0015–0.0086 INCH. IF END PLAY IS FOUND TO BE OUT OF SPECIFICATION, REMOVE ENGINE AND INSPECT FOR POSSIBLE CRANKSHAFT THRUST BEARING AND/OR CRANKSHAFT FOR WEAR. INSPECT THRUST BEARING FOR WEAR ON ONE SIDE AND CRANKSHAFT ON THAT “MATING” SURFACE. IF THE THRUST BEARING HAS THREE VERTICAL CHANNELS WORN OFF REPLACE CONNECTING ROD BEARINGS, MAIN BEARINGS, THRUST BEARING AND CRANKSHAFT. IF WORKING ON A CORVETTE THE OIL TANK WITH LINES AND OIL COOLER ARE BOTH REQUIRED TO BE REPLACED IF EQUIPPED. |
| PIE0350C | 2017-03-13. Service bulletin. THIS ENGINEERING INFORMATIONAL BULLETIN IS ENDING THE NEED FOR INFORMATION FROM THE FIELD OF VEHICLES WITH THE CONDITION OF BANG OR LOUD NOISE WITH NO FORWARD (DRIVE) OR REVERSE RANGES. |
| SB-03-07-29-004K | 2016-08-06. Service bulletin. THIS INFORMATIONAL BULLETIN PROVIDE INFORMATION ON THE OPERATING CHARACTERISTICS OF A MANUAL TRANSMISSION. |