THM 440-T4 (4T60) – ATSG (Automatic Transmission Service Group)

BuickCadillacTHM

This repair manual contains the general description, diagnosis and overhaul procedures necessary to repair, overhaul, or service the THM 440-T4 overdrive automatic transaxle.

The THM 440-T4 is a fully automatic front wheel drive transaxle. It provides Park, Reverse, Neutral and four forward speeds, with fourth gear being overdrive. Changing of the four forward gears is fully automatic, in relation to vehicle speed and throttle position. Vehicle Speed Signals (Governor), Throttle Position Signals (T.V. Cable), and Engine Torque Signals (Modulator) are constantly sent to the transaxle valve body to provide the proper gear ratio for maximum efficiency and performance at all throttle openings.

Applications:

1988-1994 W-Body
1986-1993 H-Body
1985-1993 C-Body
1984-1993 A-body
1988-1990 Buick Riviera
1988-1990 Buick Reatta
1985-1990 Cadillac models

RANGE REFERENCE CHART
OIL PRESSURE TEST
DIAGNOSTIC INFORMATION
UPDATED WIRING SCHEMATICS
COMPONENT OIL PASSAGE IDENTIFICATION (1985 HYDRAULICS)
COMPONENT OIL PASSAGE IDENTIFICATION (1985 1/2 HYDRAULICS)
TRANSAXLE DISASSEMBLY
TCC SCREEN LOCATION
CHANNEL PLATE CHECKBALL LOCATIONS
VALVE BODY CHECKBALL LOCATIONS
INSPECTION AND TRANSAXLE REASSEMBLY
END PLAY MEASUREMENT
SPEED SENSOR ROTOR TOOTH COUNT BY MODEL
TORQUE SPECIFICATIONS
SPECIAL TOOLS
1985 VERSUS 1985 1/2 MODEL IDENTIFICATION

Language: English
Format: PDF
Pages: 104

THM 440-T4 (4T60) – ATSG (Automatic Transmission Service Group) PDF free online

THM 440-T4 (4T60) – ATSG (Automatic Transmission Service Group)

Applications:

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