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AUTOMATIC - AW4 TABLE OF CONTENTS page page AUTOMATIC - AW4 DIAGNOSIS AND TESTING . . . . . . . . . . . . . . . . . 38 AUTOMATIC TRANSMISSION. . . . . . . . . . . . . . 38 INPUT SHAFT SPEED SENSOR DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 VALVE BODY SOLENOIDS AUTOMATIC - AW4 DIAGNOSIS AND TESTING - AUTOMATIC TRANSMISSION CONDITION POSSIBLE CAUSE CORRECTION VEHICLE WILL NOT BACK UP OR 1) Shift cable out of adjustment or 1) Adjust cable or replace cable. 2) Valve body or primary regulator 2) Inspect or repair the valve body. 3) Park lock pawl faulty. 3) Repair park pawl. 4) Torque converter faulty. 4) Replace torque converter. 5) Converter drive plate broken. 5) Replace drive plate. 6) Oil pump intake screen blocked. 6) Clean oil pump intake screen. 7) Transmission faulty. 7) Disassemble and repair SHIFT LEVER POSITION 1) Shift cable out of adjustment. 1) Adjust shifter cable. 2) Manual valve and lever faulty. 2) Repair valve body. HARSH ENGAGEMENT 1) Throttle valve cable out of 1) Adjust the throttle valve cable. 2) Valve body or primary regulator 2) Repair valve body. 3) Accumulator pistons faulty. 3) Repair pistons. 4) Transmission faulty. 4) Disassemble and repair DELAYED 1-2, 2-3, OR 3-4 1) Solenoid faulty. 1) Repair or replace solenoid. 2) Valve body faulty. 2) Repair valve body. 3) Electronic control problem. 3) Use appropriate diagnostics to 21s - 38 AUTOMATIC - AW4 XJ 2001 JEEP CHEROKEE |