Chrysler 42RE Automatic Transmission Service and Repair Manual (P/N: 12Y04)
Chrysler Models Covered & Key Technical Specifications
Models: Chrysler 42RE automatic transmission, including compatibility with Chrysler Grand Cherokee (1993–1998), Grand Wagoneer (1993–1999), 300M (1999–2004), Intrepid (1998–2004), Concorde (1998–2004)
Sub-models / Variants: 2WD models, 4WD models
Trade Names: Chrysler 42RE, A500SE, ATSG Techtran
Model Years: 1993–2004
Technical Data:
- Fluid: Mopar ATF Plus, Type 7176
- Oil Pump Clearances: 0.089–0.190 mm (0.0035–0.0075 in)
- Planetary End Play: 0.127–1.22 mm (0.005–0.048 in)
- Input Shaft End Play: 0.56–2.31 mm (0.022–0.091 in)
- Front Clutch Clearance (4 Disc): 1.70–3.40 mm (0.067–0.134 in)
- Front Band Adjustment: 3-5/8 turns
- Rear Band Adjustment: 4 turns
Chrysler Manual Features & Content Preview
- Covers 1993–2004 Chrysler 42RE automatic transmissions, encompassing Grand Cherokee, Grand Wagoneer, 300M, Intrepid, and Concorde applications
- Third-party publication PN: 12Y04 by Automatic Transmission Service Group (ATSG), Techtran Manual 42RE-A500SE
- 106-page technical reference featuring 151 individual technical figures and detailed system-level cross-section diagrams
- Designed specifically for internal mechanical overhauls and transmission control module electronic diagnostics
Transmission Analysis and Diagnostics
This technical manual delivers an in-depth breakdown of the 42RE transmission. It begins with a comprehensive application chart and diagnostic fault codes. From there, the material transitions directly into hydraulic and governor pressure test procedures. Sections outline the exact disassembly, sub-assembly, and assembly routines. You will find exploded-view illustrations for vital internal components like the planetary gear train, valve body, and overdrive section. Specialized chapters cover band adjustments and electronic governor components. Complex diagnostic charts are also included to help troubleshoot issues such as harsh engagement, slippage, or no-drive conditions. Working on automatic transmissions involves heavy components and pressurized hydraulic fluid. Always observe standard shop safety protocols and manufacturer guidelines before beginning any testing or teardown.
Specification and Hydraulic Data
Precise technical data is organized into accessible reference tables. The manual provides specified clearances for oil pumps, planetary end play, and input shaft end play to ensure accurate unit rebuilding. Torque values are meticulously listed for all internal components. For instance, oil pump bolts require 20 Nm (15 ft-lbs) and valve body bolts are set to 12 Nm (100 in-lbs). Fluid capacities and specific governor pressure curve applications are fully documented. Additionally, a complete wiring schematic maps out pinout functions for the transmission case connector and solenoid modules.
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