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Forward Clutch Assembly

WARNING: This page is about a different variant/trim than selected.

For forward (1, 2, 3, 4) clutch operation, REFER to: Forward Clutch Assembly .

Forward Clutch 

Condition Possible Sources Action
Forward (1, 2, 3, 4) clutch does not apply Solenoid body filter blocked to SSA CLEAN or INSTALL a new solenoid body filter screen. Refer to: Solenoid Body .
SSA is mechanically stuck OFF INSTALL a new solenoid body. Refer to: Solenoid Body . PERFORM the Transmission Strategy Download, REFER to: Transmission Strategy Download .
Forward (1, 2, 3, 4) clutch regulator valve stuck OFF REMOVE the main control valve body. Refer to: Main Control Valve Body . DISASSEMBLE, CLEAN and INSPECT the forward (1, 2, 3, 4) clutch regulator valve. REFER to: Main Control Valve Body . If bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body .
SSA SIG, CB1234, CB1234 SUP hydraulic circuits blocked/leaking REMOVE the main control valve body. Refer to: Main Control Valve Body . DISASSEMBLE and INSPECT the main control and separator plate passages for debris/blockage. REFER to: Main Control Valve Body . CLEAN as necessary.
CB1234 seal leaking REMOVE the main control valve body, REFER to: Main Control Valve Body . INSPECT the CB1234 circuit seal between the main control valve body and the transmission case for missing or damaged seal. INSTALL a new seal.
Front planetary sun gear and shell assembly INSPECT the sun gear and shell for wear and damage. INSTALL new components as necessary. Refer to: Transmission .
Low One-Way Clutch (OWC) snap ring INSPECT the low One-Way Clutch (OWC) snap ring for proper seating in case. Refer to: Transmission .
Low One-Way Clutch (OWC)/Forward (1, 2, 3, 4) clutch steel plate DISASSEMBLE and INSPECT the forward (1, 2, 3, 4) clutch steel plates. INSTALL new components as necessary. Refer to: Transmission .
Low One-Way Clutch (OWC)/Forward (1, 2, 3, 4) clutch friction plates DISASSEMBLE and INSPECT the forward (1, 2, 3, 4) clutch friction and steel plates. INSTALL new components as necessary. Refer to: Transmission .
Forward (1, 2, 3, 4) clutch piston seal leakage. INSTALL a new forward (1, 2, 3, 4) clutch piston. Refer to: Transmission .
Forward (1, 2, 3, 4) clutch always applied Solenoid body filter seal damaged at SSA INSTALL a new solenoid body filter screen. Refer to: Solenoid Body .
SSA mechanically stuck ON INSTALL a new solenoid body. Refer to: Solenoid Body . PERFORM the Transmission Strategy Download, REFER to: Transmission Strategy Download .
Forward (1, 2, 3, 4) clutch regulator valve stuck ON REMOVE the main control valve body, REFER to: Main Control Valve Body . DISASSEMBLE, CLEAN and INSPECT the forward (1, 2, 3, 4) clutch regulator valve. REFER to: Main Control Valve Body . If bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body .
SSA SIG, CB1234, CB1234 SUP hydraulic circuits blocked/leaking REMOVE the main control valve body, REFER to: Main Control Valve Body . DISASSEMBLE and INSPECT the main control valve body and separator plate passages for leakage. INSPECT the CB1234 check ball for blocked passage. REFER to: Main Control Valve Body . CLEAN as necessary.
Front planetary sun gear and shell assembly INSPECT the sun gear and shell for wear and damage. INSTALL new components necessary. Refer to: Transmission .
Forward (1, 2, 3, 4) clutch friction plates DISASSEMBLE and INSPECT the forward (1, 2, 3, 4) clutch friction and steel plates. INSTALL new components as necessary. Refer to: Transmission .
Forward (1, 2, 3, 4) clutch piston return spring INSPECT the return spring for proper installation and damage. INSTALL new components as necessary. Refer to: Transmission .
Forward (1, 2, 3, 4) clutch delayed/soft/slipping apply Incorrect Transmission Strategy programmed into PCM PERFORM the Transmission Strategy Download, REFER to: Transmission Strategy Download .
Solenoid body filter seal damaged at SSA INSTALL a new solenoid body filter screen. Refer to: Solenoid Body .
SSA mechanically stuck INSTALL a new solenoid body. Refer to: Solenoid Body . PERFORM the Transmission Strategy Download, REFER to: Transmission Strategy Download .
Forward (1, 2, 3, 4) clutch regulator valve sticking REMOVE the main control valve body, REFER to: Main Control Valve Body . DISASSEMBLE, CLEAN and INSPECT the forward (1, 2, 3, 4) clutch regulator valve. REFER to: Main Control Valve Body . If bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body .
Forward (1, 2, 3, 4) clutch boost valve stuck ON REMOVE the main control valve body, REFER to: Main Control Valve Body . DISASSEMBLE, CLEAN and INSPECT the forward (1, 2, 3, 4) clutch boost valve and bias spring. REFER to: Main Control Valve Body . If bore, valve or spring is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body .
SSA SIG, CB1234, CB1234 SUP hydraulic circuits blocked/leaking REMOVE the main control valve body, REFER to: Main Control Valve Body . DISASSEMBLE and INSPECT the main control valve body and separator plate passages for debris/blockage. REFER to: Main Control Valve Body . CLEAN as necessary.
CB1234 seal leaking REMOVE the main control valve body, REFER to: Main Control Valve Body . INSPECT the CB1234 circuit seal between the main control valve body and the transmission case for missing or damaged seal. INSTALL a new seal. REFER to: Main Control Valve Body .
Low One-Way Clutch (OWC)/Forward (1, 2, 3, 4) clutch pressure plate DISASSEMBLE and INSPECT the low One-Way Clutch (OWC)/forward (1, 2, 3, 4) clutch pressure plate. INSTALL new components as necessary. Refer to: Transmission .
Forward (1, 2, 3, 4) clutch friction plates DISASSEMBLE and INSPECT the forward (1, 2, 3, 4) clutch friction and steel plates. INSTALL new components as necessary. Refer to: Transmission .
Forward (1, 2, 3, 4) clutch piston return spring INSPECT the return spring for proper installation and damage. INSTALL new components as necessary. Refer to: Transmission .
Forward (1, 2, 3, 4) clutch harsh apply Incorrect Transmission Strategy programmed into PCM PERFORM the Transmission Strategy Download, REFER to: Transmission Strategy Download .
SSA mechanically sticking INSTALL a new solenoid body. Refer to: Solenoid Body . PERFORM the Transmission Strategy Download, REFER to: Transmission Strategy Download .
Forward (1, 2, 3, 4) clutch regulator valve sticking REMOVE the main control valve body, REFER to: Main Control Valve Body . DISASSEMBLE, CLEAN and INSPECT the forward (1, 2, 3, 4) clutch regulator valve and bias spring. REFER to: Main Control Valve Body . If bore, valve or spring is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body .
Forward (1, 2, 3, 4) clutch boost valve sticking REMOVE the main control valve body, REFER to: Main Control Valve Body . DISASSEMBLE, CLEAN and INSPECT the forward (1, 2, 3, 4) clutch boost valve and bias spring. REFER to: Main Control Valve Body . If bore, valve or spring is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body .
SSA SIG, CB1234, CB1234 SUP hydraulic circuits blocked/leaking REMOVE the main control valve body, REFER to: Main Control Valve Body . DISASSEMBLE and INSPECT the main control and separator plate passages for leakage. INSPECT CB1234 check ball for blocked passage. CLEAN as necessary.
Forward (1, 2, 3, 4) clutch piston return spring INSPECT the return spring for proper installation and damage. INSTALL new components as necessary. Refer to: Transmission .
Forward (1, 2, 3, 4) clutch friction plates DISASSEMBLE and INSPECT the forward (1, 2, 3, 4) clutch friction and steel plates. INSTALL new components as necessary. Refer to: Transmission .
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