# Service bulletin 14730

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: 10090222
- Published by NHTSA: 2017\-02\-02
- Manufacturer's number: 14730
- Manufacturer's date: 2014\-11\-07
- NHTSA component: POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER

## NHTSA's summary

14730 \- CUSTOMER SATISFACTION PROGRAM. CERTAIN VEHICLES, EQUIPPED WITH ENGINE RPO L96 \(6.0L V\-8\) AND TRANSMISSION RPO MYD \(6 SPEED AUTO\), MAY HAVE A CONDITION IN WHICH HIGH DUTY CYCLE USE WHILE PULLING TRAILERS AND/OR VEHICLES \(SUCH AS FLEET CUSTOMERS DRIVING CUT\-AWAY MODELS WITH 16 FOOT BOXES\) CAN EXCEED THE TARGET ENERGY INPUT TO THE CLUTCH. THIS MAY LEAD TO FASTER TORQUE CONVERTER CLUTCH FRICTION MATERIAL WEAR THAN EXPECTED. SOME OPERATORS OF VEHICLES WITH THIS CONDITION HAVE REPORTED A DRIVELINE VIBRATION OR SHUDDER FEELING. DEALERS ARE TO REPROGRAM THE TRANSMISSION CONTROL MODULE \(TCM\).

## 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, Automatic transmission, Torque converter

## Vehicles listed

- 2010 to 2014 CHEVROLET EXPRESS
- 2010 to 2014 GMC SAVANA

## Recalls for the same vehicles and component

- [13V001000](/recalls/nhtsa/13V001000.md), 2013-01-02: POWER TRAIN:AUTOMATIC TRANSMISSION; STEERING:COLUMN LOCKING:ANTI\-THEFT DEVICE

## Other bulletins for the same vehicles and component

- [PI0690B](/bulletins/10253608.md), 2024-04-29, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. MIL Illuminated.
- [PI0690A](/bulletins/10253607.md), 2024-04-29, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. MIL Illuminated.
- [14730](/bulletins/10247232.md), 2023-12-18, Service bulletin: UNKNOWN OR OTHER; POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER; ELECTRICAL SYSTEM:STARTER ASSEMBLY:SOLENOID; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE. Torque Converter Clutch Wear
- [17\-NA\-066](/bulletins/10239647.md), 2023-07-25, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN. This service bulletin provides information for automatic transmission Oil Cooler Flush and flow test.
- [16\-NA\-130](/bulletins/10232711.md), 2023-03-08, Service bulletin: POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:VALVES/VALVE BODY. This service bulletin provides information for after installation of a replacement upper valve body, the transmission may have no Reverse and no 2nd gear.
- [06\-00\-89\-031D](/bulletins/10201098.md), 2021-09-07, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN; ENGINE. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
- [990420002L](/bulletins/10200154.md), 2021-08-09, Service bulletin: POWER TRAIN:MANUAL TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION; EQUIPMENT. This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.
- [06\-00\-89\-031D](/bulletins/10190503.md), 2021-04-20, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
- [150089004C](/bulletins/10188403.md), 2021-03-08, Service bulletin: SUSPENSION:FRONT:MACPHERSON STRUT; SUSPENSION:FRONT:SHOCK ABSORBER; POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT. This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
- [19NA153](/bulletins/10186070.md), 2021-02-01, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. This technical bulletin provides a procedure to replace the torque converter and inspect the front pump and the TEHCM for metal.

JSON: [/v1/bulletins/10090222](/v1/bulletins/10090222)

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