Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 449 bulletins for ALLISON
TIB-26-18
Sep 30, 2009
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
KENWORTH: AUTOMATIC TRANSMISSION WILL NOT SHIFT PROPERLY, BUT CHECK TRANSMISSION WARNING LAMP DOES NOT ILLUMINATE, AND THE SELECT AND MONITOR DISPLAYS DO NOT AGREE (EG: D SELECTED AND N MONITOR DISPLAY). CHASSIS EQUIPPED WITH ALLISON 1000
2008-FA-6
Feb 10, 2009
102000 POWER TRAIN:MANUAL TRANSMISSION
ALLISON TRANSMISSION SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. POTENTIAL CONCERN WITH SHIFT VALVE TRIM SPRINGS IN DOCK SPOTTER AND TRANSIT BUS VOCATIONS. THE 3000 PRODUCT FAMILY, B 300, B 400, B 500 AND T MODELS ARE
2008FA-5
Sep 1, 2008
103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
ALLISON TRANSMISSION SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. IN SOME 24 VOLT 4TH GEN CALIBRATIONS THE MAIN MODULATION SOLENOID MAY NOT ACTIVATE PROPERLY AT IDLE; WHICH REDUCES COOLER FLOW AT IDLE. CSC LETTER WAS
2008FA-2
May 1, 2008
350000 EQUIPMENT
ALLISON TRANSMISSION SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. AC CURRENT SENSOR WIRING HARNESS REPLACEMENT INSTALLED IN DUAL POWER INVERTER MODULES (DPIMS) BUILT BETWEEN 12/22/05 AND 3/6/07. HAVE IMPROPER SHIELD WIRE
2008FA-4
May 1, 2008
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
ALLISON TRANSMISSION SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. HIGH VOLTAGE INTERLOCK LOOP (HVIL) CIRCUIT CARDS FOR EP 40/50 SYSTEM, INSTALLED IN DUAL POWER INVERTER MODULES (DPIM) BUILT BETWEEN 6/14/05 & 6/20/06 WILL B
IK-1300055
Dec 17, 2007
102000 POWER TRAIN:MANUAL TRANSMISSION
INTERNATIONAL: DUE TO POOR SHIFTING QUALITY, TOO FAST UPSHIFTING, THERE IS A PROBLEM IN SOFTWARE CALIBRATIONS FOR TRANSMISSIONS ON SOME TRUCKS. ALLISON GEN 4 LCT (1000, 2000). NO YEARS LISTED.
IK1300022
Nov 21, 2006
050000 PARKING BRAKE
Allison Transmission with Auto Neutral Feature Won?t Shift Back into Gear When the Parking Brake is Released; only with Allison MD Transmission and Auto Neutral Feature 13AAZ and 13WUA
4WT03
Feb 1, 2003
100000 POWER TRAIN
NEW OUTPUT SEAL, YOKE/FLANGE AND SLINGER CONFIGURATION. ALL HD 4000, B500 AND T400 SERIES TRANSMISSIONS. *TT
11K2K03
Jan 1, 2003
100000 POWER TRAIN
INTRODUCING ALLISON DOC FOR PDA (1000/2000 SERIES) DIAGNOSTIC TOOLS. *TT
32TR02
Dec 1, 2002
100000 POWER TRAIN
RELEASE OF J-46550 PALL TRANSMISSION COOLER KWIK-FLUSH CART. *TT
291K2K02
Nov 1, 2002
100000 POWER TRAIN
LUBE REGULATOR VALVE SPRING AND CONVERTER RELIEF VALVE SPRING. *TT
27TR02
Oct 1, 2002
102000 POWER TRAIN:MANUAL TRANSMISSION
LUBE FLOW/PRODUCT IMPROVEMENTS. M/S9600, S9800 MODELS. *TT
281K2K02
Oct 1, 2002
100000 POWER TRAIN
FINAL TEST SPECIFICATIONS, 1000 AND 2000 PRODUCT FAMILIES TRANSMISSION. ALL 1000 AND 2000 PRODUCT FAMILIES AFFECTED. *MJ
26WT02
Sep 1, 2002
103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
COATING ON WORLD TRANSMISSION CONTROL MODULE THREADED FASTENERS. *TT
27WT96B
Sep 1, 2002
100000 POWER TRAIN
CORRECT INSTALLATION OF SEALRINGS WHEN OVERHAULING AN ALLISON WT TRANSMISSION. *TT
700200213301
May 13, 2002
102000 POWER TRAIN:MANUAL TRANSMISSION
SUBJECT REGARDING LOCATION OF ALLISON DIAGNOSTIC PLUG ON FREEDOM CHASSIS. NLM
3TR02
Mar 1, 2002
101000 POWER TRAIN:CLUTCH ASSEMBLY
SUBJECT REGARDING REVISED INTERMEDIATE CARRIER ASSEMBLY PRACTICES FOR M9600 TRANSMISSIONS WITH TWO SPEED REVERSE OPTION. *TT
41K2K02
Mar 1, 2002
103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
SUBJECT REGARDING ALL 1000 / 2000 / 2400 SERIES TCMS USING VERSION U02 SOFTWARE. *TT
5WT02
Mar 1, 2002
102000 POWER TRAIN:MANUAL TRANSMISSION
SUBJECT REGARDING CHANGES TO WT TRANSMISSIONS USING FIRE TRUCK PUMP MODE (FTPM) FUNCTION FOR VERSION 9A SOFTWARE. *TT
1TR02
Feb 1, 2002
102000 POWER TRAIN:MANUAL TRANSMISSION
SUBJECT REGARDING POWER TAKEOFF BEARING UPDATE FOR ALL 5/6000 SERIES TRANSMISSIONS. *TT
21K2K02
Feb 1, 2002
103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
SUBJECT REGARDING NEW TCM CALIBRATION AND SOFTWARE. *TT