Direct Clutch
For direct (3,5,R) clutch operation,
REFER to: Transmission
Description (307-01B Automatic Transmission - 6-Speed Automatic
Transmission – 6F35, Description and Operation).
REFER to: Direct Clutch Assembly (307-01B Automatic Transmission -
6-Speed Automatic Transmission – 6F35, Description and Operation).
Direct Clutch
Condition | Possible Sources | Action |
Direct (3,5,R) clutch does not apply | SSB Solenoid filter blocked |
CLEAN or INSTALL a new solenoid. REFER to: Solenoid Body (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Removal and Installation). REFER to: Solenoid (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F15, Removal and Installation). |
SSB is mechanically stuck OFF |
INSTALL a new solenoid. REFER to: Solenoid Body (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Removal and Installation). REFER to: Solenoid (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F15, Removal and Installation). |
|
Direct (3,5,R) clutch regulator valve stuck OFF |
DISASSEMBLE, CLEAN and INSPECT the direct (3,5,R) clutch regulator valve. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F15, Overhaul). REFER to: Main Control Valve Body (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul). If bore or valve is damaged, INSTALL a new main control valve body. |
|
SSB SIG, C35R, C35R SUP hydraulic circuits blocked/leaking |
DISASSEMBLE and INSPECT the main control valve
body and separator plate passages for debris/blockage. CLEAN as
necessary. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F15, Overhaul). REFER to: Main Control Valve Body (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul). |
|
REV SUPPLY/DRIVE 2 to C35R SUP check ball missing/damaged |
REMOVE the main control valve body, and INSPECT the check ball missing/damage. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F15, Overhaul). REFER to: Main Control Valve Body (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul). |
|
C35R supply hydraulic circuit blocked or leaking |
DISASSEMBLE and INSPECT the transmission cover
and support tower passages for debris/blockage. CLEAN as necessary. REFER to: Transmission (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul). |
|
Rear planetary sun gear and shell assembly |
INSPECT the sun gear and shell for wear and damage. INSTALL new components as necessary. REFER to: Transmission (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul). |
|
Direct (3,5,R) clutch friction plates |
DISASSEMBLE and INSPECT the direct (3,5,R)
clutch friction and steel plates. INSTALL new components as necessary. REFER to: Transmission (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul). |
|
Direct (3,5,R) clutch piston seal leakage |
DISASSEMBLE and INSPECT the direct (3,5,R) clutch piston and seals. INSTALL new components as necessary. REFER to: Transmission (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul). |
|
Direct (3,5,R) clutch always applied | SSB O-rings damaged/leaking |
INSTALL a new solenoid. REFER to: Solenoid Body (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Removal and Installation). REFER to: Solenoid (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F15, Removal and Installation). |
SSB mechanically stuck ON |
INSTALL a new solenoid. REFER to: Solenoid Body (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Removal and Installation). REFER to: Solenoid (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F15, Removal and Installation). |
|
Direct (3,5,R) clutch regulator valve stuck ON |
DISASSEMBLE, CLEAN and INSPECT the direct
(3,5,R) clutch regulator valve and bias spring. If bore or valve is
damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F15, Overhaul). REFER to: Main Control Valve Body (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul). |
|
SSB SIG, C35R, C35R SUP hydraulic circuits blocked/leaking |
DISASSEMBLE and INSPECT the main control vlave
body and separator plate passages for leakage. CLEAN as necessary. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F15, Overhaul). REFER to: Main Control Valve Body (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul). |
|
Rear planetary sun gear and shell assembly |
INSPECT the sun gear and shell for damage that
would prevent free rotation. INSTALL new components as necessary. REFER to: Transmission (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul). |
|
Direct (3,5,R) clutch friction plates |
DISASSEMBLE and INSPECT the direct (3,5,R)
clutch friction and steel plates. Measure clutch pack clearance. INSTALL
new components as necessary. REFER to: Transmission (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul). |
|
Direct (3,5,R) clutch piston return spring |
INSPECT the return spring for damage. INSTALL new components as necessary. REFER to: Transmission (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul). |
|
Direct (3,5,R) clutch delayed/soft/slipping apply | Incorrect Transmission Strategy programmed into PCM |
Remove SSB and record solenoid band number. REFER to: Solenoid (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F15, Removal and Installation). Using the scan tool, verify the correct band number is stored in the PCM . If bands numbers do not match, INSTALL a new SSB with correct band number. |
SSB solenoid filter partially blocked or restricted |
INSTALL a new solenoid. REFER to: Solenoid Body (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Removal and Installation). REFER to: Solenoid (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F15, Removal and Installation). |
|
SSB mechanically sticking |
INSTALL a new solenoid. REFER to: Solenoid Body (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Removal and Installation). REFER to: Solenoid (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F15, Removal and Installation). |
|
Direct (3,5,R) clutch regulator valve sticking |
DISASSEMBLE, CLEAN and INSPECT the direct
(3,5,R) clutch regulator valve. If bore or valve is damaged, INSTALL a
new main control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F15, Overhaul). REFER to: Main Control Valve Body (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul). |
|
Direct (3,5,R) clutch boost valve stuck ON |
DISASSEMBLE, CLEAN and INSPECT the direct
(3,5,R) clutch boost valve and bias spring. If bore, valve or spring is
damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F15, Overhaul). REFER to: Main Control Valve Body (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul). |
|
SSB SIG, C35R, C35R SUP hydraulic circuits blocked/leaking |
DISASSEMBLE and INSPECT the main control valve
body and separator plate passages for debris/blockage. CLEAN as
necessary. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F15, Overhaul). REFER to: Main Control Valve Body (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul). |
|
REV SUPPLY/DRIVE 2 to C35R SUP check ball missing/damaged |
REMOVE the main control valve body and INSPECT the check ball missing/damage. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F15, Overhaul). REFER to: Main Control Valve Body (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul). |
|
C35R supply hydraulic circuit blocked or leaking |
DISASSEMBLE and INSPECT the transmission cover
and support tower passages for debris/blockage. CLEAN as necessary. REFER to: Transmission (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul). |
|
Direct (3,5,R) clutch friction plates |
DISASSEMBLE and INSPECT the direct (3,5,R)
clutch friction and steel plates. Measure clutch pack clearance. INSTALL
new components as necessary. REFER to: Transmission (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul). |
|
Direct (3,5,R) clutch piston seal leakage |
DISASSEMBLE and INSPECT the direct (3,5,R) clutch piston and seals. INSTALL new components as necessary. REFER to: Transmission (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul). |
|
Direct (3,5,R) clutch harsh apply | Incorrect Transmission Strategy programmed into PCM |
Remove SSB and record solenoid band number. REFER to: Solenoid Body (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Removal and Installation). REFER to: Solenoid (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F15, Removal and Installation). Using the scan tool, verify the correct band number is stored in the PCM . If bands numbers do not match, INSTALL a new SSB with correct band number. |
SSB mechanically sticking |
INSTALL a new solenoid. REFER to: Solenoid Body (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Removal and Installation). REFER to: Solenoid (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F15, Removal and Installation). |
|
Direct (3,5,R) clutch regulator valve sticking |
DISASSEMBLE, CLEAN and INSPECT the direct
(3,5,R) clutch regulator valve and bias spring. If bore, valve or spring
is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F15, Overhaul). REFER to: Main Control Valve Body (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul). |
|
Direct (3,5,R) clutch boost valve sticking |
DISASSEMBLE, CLEAN and INSPECT the direct
(3,5,R) clutch boost valve and bias spring. If bore, valve or spring is
damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F15, Overhaul). REFER to: Main Control Valve Body (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul). |
|
SSB SIG, C35R, C35R SUP hydraulic circuits blocked/leaking |
DISASSEMBLE and INSPECT the main control valve
body and separator plate passages for debris/blockage. CLEAN as
necessary. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F15, Overhaul). REFER to: Main Control Valve Body (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul). |
|
Direct (3,5,R) clutch friction plates |
DISASSEMBLE and INSPECT the direct (3,5,R)
clutch friction and steel plates. INSTALL new components as necessary. REFER to: Transmission (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul). |
|
Direct (3,5,R) clutch piston return spring |
INSPECT the return spring for proper installation and damage. INSTALL new components as necessary. REFER to: Transmission (307-01B Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul). |