Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 449 bulletins for ALLISON
10TR99B
Jan 1, 2002
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
SUBJECT REGARDING ATD FACTORY FILL OF TRANSYND REVISED TRANSMISSION FLUID / FILTER CHANGE RECOMMENDATIONS FOR AT500, MT600, HT700, MD3000, HD4000, B3/4/500, 1000, 2000, 2400, 200MH AND T SERIES TRANSMISSIONS. *TT
25WT01
Oct 1, 2001
102000 POWER TRAIN:MANUAL TRANSMISSION
SUBJECT REGARDING HD/B 500/4000MH BEARING RETAINER LOCKNUT RETENTION. *TT
161K2K01
Aug 1, 2001
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
SUBJECT REGARDING C1 SELECTIVE BACKPLATE. *SLC
171K2K01
Aug 1, 2001
103700 POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER
SUBJECT REGARDING TORQUE CONVERTERS INTERCHANGEABILITY. *SLC
18WT01
Aug 1, 2001
102000 POWER TRAIN:MANUAL TRANSMISSION
SUBJECT REGARDING WTEC III LEVER SHIFT SELECTOR AVAILABILITY AND SERVICE PARTS. *SLC
191K2K01
Aug 1, 2001
102000 POWER TRAIN:MANUAL TRANSMISSION
SUBJECT REGARDING TRANSPRO VERSION 8.53. *SLC
20WT01
Aug 1, 2001
102000 POWER TRAIN:MANUAL TRANSMISSION
SUBJECT REGARDING FILTER COVER BOLT HOLE REPAIR KIT. *SLC
11WT01
Jun 1, 2001
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
SUBJECT REGARDING NEW ELECTRONIC CONTROL UNITS, V9A CONTROLS SOFTWARE, AND NEW TRANSMISSION CALIBRATIONS FOR WORLD TRANSMISSION MODELS. *TT
12TR01
Jun 1, 2001
102000 POWER TRAIN:MANUAL TRANSMISSION
THIS SERVICE INFORMATION LETTER PROVIDES AN UPDATE TO PRODUCT IMPROVEMENTS MADE TO THE M/S 9600 AND S 9800 MODELS. *TT
17WT98A
Jun 1, 2001
102300 POWER TRAIN:MANUAL TRANSMISSION:SHIFT PATTERN INDICATOR
INFORMATION REGARDING ALLISON TRANSMISSION'S RELEASE OF THE NEW PUSHBUTTON SHIFT SELECTOR FOR USE ONLY WITH WTEC III ELECTRONIC CONTROLS. *TT
10WT01
May 1, 2001
102000 POWER TRAIN:MANUAL TRANSMISSION
ALLISON TRANSMISSION SERVICE INFORMATION REGARDING CANCELLATION OF MD PRE-BLOCK RETRAN CENTER ASSEMBLY NUMBERS. *TT
211K2K00A
May 1, 2001
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
SERVICE INFORMATION ON THE RELEASE OF THE NEW 2000 SERIES TRANSMISSION. *TT
71K2K01
May 1, 2001
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
THIS SERVICE INFORMATION LETTER INTRODUCES THE 1000 / 2000 / 2400 SERIES RETRAN TRANSMISSION. *TT
9TR01
May 1, 2001
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
SUBJECT REGARDING THE RELEASE OF THE NEW POLYESTER SUMP FILTER FOR ALL AT 500 TRANSMISSIONS WITH THE 5.3 INCH DEEP OIL PAN. *TT
81K2K01
Apr 1, 2001
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
SUBJECT REGARDING NEUTRAL START BACK UP (NSBU) SWITCH DAMAGE ON 1000 / 2000 / 2400 SERIES TRANSMISSIONS. *TT
211K2K00
Oct 1, 2000
103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
THIS SERVICE INFORMATION LETTER INTRODUCES THE RELEASE OF THE 2000 MOTOR HOME TRANSMISSION (2000 MH). THE NEW 2000 MH MODEL WILL BE MATED ONLY TO THE CUMMINS ISB ENGINE RATED AT 275 HP AND 600 FT-LBS. TO ACCOMMODATE THE ADDITIONAL INPUT
2000C2A
Sep 1, 2000
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
ALLISON TRANSMISSION HAS DECIDED THAT SOME 1000 SERIES AND SOME 2400 SERIES TRANSMISSION MAY EXHIBIT A CONDITION IN WHICH THE PARK PAWL DOES NOT ENGAGE WHEN THE TRANSMISSION SHIFT SELECTOR IS MOVED TO THE PARK POSITION. *TT
9WT98A
Apr 1, 1999
102000 POWER TRAIN:MANUAL TRANSMISSION
VEHICLES WITH WORLD TRANSMISSIONS CONTROLLED BU V7 OR V7A SOFTWARE CAN EXPERIENCE A CODE 54 23. *TT
24-TR-98
Nov 1, 1998
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
SUBJECT ON HT / CLT 700 MODULATOR BODY. *TT
12WT98
Jun 1, 1998
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
EXPERIENCING AN INTERMITTENT 1-2/2-1 SHIFT CYCLE WHILE THE TRANSMISSION IS IN DRIVE AND THE VEHICLE IS STATIONARY. *TT
9WT98
Apr 1, 1998
102000 POWER TRAIN:MANUAL TRANSMISSION
EXPERIENCING A CODE 54 23 WHEN A CLOSED THROTTLE 2-1 DOWNSHIFT IS INTERRUPTED BEFORE THE SHIFT IS COMPLETED BY AN INCREASE IN THROTTLE PERCENTAGE AND THE SHIFT CHANGES TO POWERED DOWNSHIFT. *YC
6WT98
Mar 1, 1998
116200 ELECTRICAL SYSTEM:IGNITION:MODULE
ALLISON TRANSMISSION HAS DETERMINED THAT ELECTRICAL TRANSIENT VOLTAGE SIGNALS PRESENT ON THE VEHICLE CHASSIS CAN CAUSE WTEC ELECTRONIC CONTROL UNIT (ECU) DIAGNOSTIC CODES. THEREFORE, A CHASSIS ISOLATION KIT HAS BEEN DEVELOPED TO AID IN IS
98500
Jan 1, 1998
101000 POWER TRAIN:CLUTCH ASSEMBLY
CONCERNS OF POWER WINDOWS AND DOOR LOCKS DON'T WORK. *YC
3TR97
Feb 1, 1997
061100 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
ENGINE SURGING OR ENGINE SPEED CYCLING MAY OCCUR ON NATURAL GAS POWERED EQUIPMENT. *AK