Product Overview
The Allison Generation 1 - 1000/2000 Transmission found in 2000 and up C and K Series trucks. This Allison 1000/2000 Technical Manual covers assembly, dis-assembly, diagnosis, troubleshooting and electronic controls & operation.
CLUTCH AND SOLENOID APPLICATION CHART........................................................................................................................................................................ 4
TRANSMISSION IDENTIFICATION TAG INFORMATION........................................................................................................................................................................ 5
GENERAL DESCRIPTION AND OPERATION........................................................................................................................................................................ 6
ELECTRICAL OPERATION........................................................................................................................................................................ 9
THROTTLE POSITION SENSOR..................................................................................................................................................................... 10
NEUTRAL START BACK UP SWITCH...................................................................................................................................................................... 11
TRANSMISSION CONTROL MODULE CONNECTOR IDENTIFICATION..................................................................................................................................................................... 12
DIAGNOSTIC TROUBLE CODE IDENTIFICATION..................................................................................................................................................................... 14
SOLENOID IDENTIFICATION AND OPERATION..................................................................................................................................................................... 16
INTERNAL WIRING HARNESS SCHEMATIC AND RESISTANCE CHART..................................................................................................................................................................... 18
EXTERNAL WIRING HARNESS SCHEMATIC AND TERMINAL IDENTIFICATION..................................................................................................................................................................... 19
PRESSURE SWITCH ASSEMBLY IDENTIFICATION AND OPERATION..................................................................................................................................................................... 20
RETRIEVING DIAGNOSTIC TROUBLE CODES..................................................................................................................................................................... 22
LINE PRESSURE TESTS..................................................................................................................................................................... 23
BELL HOUSING OIL PASSAGE IDENTIFICATION..................................................................................................................................................................... 24
MAIN CASE "FRONT" OIL PASSAGE IDENTIFICATION..................................................................................................................................................................... 26
MAIN CASE "REAR" OIL PASSAGE IDENTIFICATION..................................................................................................................................................................... 27
OIL PUMP COVER OIL PASSAGE IDENTIFICATION..................................................................................................................................................................... 29
SHIFT VALVE BODY OIL PASSAGE IDENTIFICATION..................................................................................................................................................................... 31
MAIN VALVE BODY "TOP VIEW" OIL PASSAGE IDENTIFICATION..................................................................................................................................................................... 32
MAIN VALVE BODY "BOTTOM VIEW" OIL PASSAGE IDENTIFICATION..................................................................................................................................................................... 33
MAIN CASE "BOTTOM VIEW" OIL PASSAGE IDENTIFICATION...................................................................................................................................... 35
TRANSMISSION DISASSEMBLY PROCESS..................................................................................................................................................................... 36
COMPONENT REBUILD
TRANSMISSION CASE ASSEMBLY.............................................................................................................................................................. 53
OIL PUMP AND BELLHOUSING ASSEMBLY.............................................................................................................................................................. 55
FOUR DIFFERENT BELL HOUSINGS IDENTIFICATION.............................................................................................................................................................. 66
C1/C2 CLUTCH HOUSING ASSEMBLY.............................................................................................................................................................. 68
C1/C2 CLUTCH HOUSING SNAP RING IDENTIFICATION.............................................................................................................................................................. 72
VALVE BODY ASSEMBLY.............................................................................................................................................................. 80
SOLENOID AIR CHECKS.............................................................................................................................................................. 83
EXTENSION HOUSING ASSEMBLY.............................................................................................................................................................. 91
GEAR TRAIN PARTS.............................................................................................................................................................. 96
CASE CLUTCH PARTS............................................................................................................................................................ 100
FINAL TRANSMISSION ASSEMBLY PROCESS................................................................................................................................................................... 102
BOLT IDENTIFICATION CHART................................................................................................................................................................... 119
TORQUE SPECIFICATION CHART................................................................................................................................................................... 120
