Symptom Chart
F Clutch
For F clutch operation,
REFER to: F Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Description and Operation).
F Clutch
Condition | Possible Sources | Action |
F clutch does not apply | SSF is mechanically stuck OFF |
INSTALL a new solenoid. REFER to: Shift Solenoids (SS) (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
F clutch control valve stuck OFF |
DISASSEMBLE, CLEAN and INSPECT the F clutch
control valve. If the bore or valve is damaged, INSTALL a new main
control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
|
F clutch latch valve stuck OFF |
DISASSEMBLE, CLEAN and INSPECT the F clutch
latch valve. If the bore or valve is damaged, INSTALL a new main control
valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
|
F clutch hydraulic circuit blocked/leaking |
DISASSEMBLE and INSPECT the main control
valve body and separator plate passages for debris, blockage and leaks.
CLEAN as necessary. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
|
CARRY OUT the air pressure test on the F clutch. REFER to: Special Testing Procedures (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing). If a leak is detected, INSPECT the front support assembly, input shaft Teflon seals and F clutch piston seals for leaks. INSTALL new components as necessary. REFER to: Transmission (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Overhaul). |
||
CDF clutch cylinder, clutch and planetary container, ring gear no. 4 |
DISASSEMBLE and INSPECT the CDF clutch
cylinder, the clutch and planetary container and ring gear no. 4 for
wear and damage. INSTALL new components as necessary. REFER to: Transmission (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Overhaul). |
|
F clutch piston seals |
DISASSEMBLE and INSPECT the F clutch piston
seals for wear and damage. INSTALL new components as necessary. REFER to: Transmission (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Overhaul). |
|
F clutch friction plates |
DISASSEMBLE and INSPECT the F clutch
friction and steel plates for wear and damage. INSTALL new components as
necessary. REFER to: Transmission (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Overhaul). |
|
F clutch always applied | SSF mechanically stuck ON |
INSTALL a new solenoid. REFER to: Shift Solenoids (SS) (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
F clutch control valve stuck ON |
DISASSEMBLE, CLEAN and INSPECT the F clutch
control valve. If the bore or valve is damaged, INSTALL a new main
control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
|
F clutch latch valve stuck ON |
DISASSEMBLE, CLEAN and INSPECT the F clutch
latch valve. If the bore or valve is damaged, INSTALL a new main control
valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
|
F clutch hydraulic circuit cross leaks |
DISASSEMBLE and INSPECT the main control
valve body and separator plate passages for cracks, warping and damage.
If damage is found, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
|
F clutch hub, clutch and planetary container, No.4 ring gear |
DISASSEMBLE and INSPECT the CDF clutch
cylinder, the clutch and planetary container and ring gear no. 4 for
wear and damage. INSTALL new components as necessary. REFER to: Transmission (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Overhaul). |
|
F clutch piston return spring |
DISASSEMBLE and INSPECT the F clutch piston
return spring for damage. INSTALL new components as necessary. REFER to: Transmission (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Overhaul). |
|
F clutch friction plates |
DISASSEMBLE and INSPECT the F clutch
friction and steel plates for wear and damage. INSTALL new components as
necessary. REFER to: Transmission (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Overhaul). |
|
F clutch delayed/soft/slipping apply | Incorrect transmission strategy programmed into PCM/ TCM. |
CARRY OUT the Transmission Strategy Download and the Adaptive Learning Drive Cycle. REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, General Procedures). REFER to: Adaptive Learning Drive Cycle (307-01B Automatic Transmission - 10-Speed Automatic Transmission – 10R80 MHT, General Procedures). |
Low line pressure |
CARRY OUT the line pressure test. If line
pressure is low, REFER to the Line Pressure Diagnosis Chart. REFER to: Special Testing Procedures (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing). |
|
SSF mechanically sticking |
|
|
F clutch control valve sticking |
|
|
F clutch latch valve sticking |
|
|
F clutch hydraulic circuits blocked/leaking |
DISASSEMBLE and INSPECT the main control
valve body and separator plate passages for debris, blockage and leaks.
CLEAN as necessary. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
|
F clutch piston seals |
DISASSEMBLE and INSPECT the F clutch piston
seals for wear and damage. INSTALL new components as necessary. REFER to: Transmission (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Overhaul). |
|
F clutch friction plates |
DISASSEMBLE and INSPECT the F clutch
friction and steel plates for wear and damage. INSTALL new components as
necessary. REFER to: Transmission (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Overhaul). |
|
F clutch harsh apply | Incorrect transmission strategy programmed into PCM/ TCM. |
CARRY OUT the Transmission Strategy Download and the Adaptive Learning Drive Cycle. REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, General Procedures). REFER to: Adaptive Learning Drive Cycle (307-01B Automatic Transmission - 10-Speed Automatic Transmission – 10R80 MHT, General Procedures). |
High line pressure |
CARRY OUT the line pressure test. If line
pressure is high, REFER to the Line Pressure Diagnosis Chart. REFER to: Special Testing Procedures (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing). |
|
SSF mechanically sticking |
|
|
F clutch control valve sticking |
|
|
F clutch latch valve sticking |
|
|
F clutch hydraulic circuit blocked/leaking |
DISASSEMBLE and INSPECT the main control
valve body and separator plate passages for debris, blockage and leaks.
CLEAN as necessary. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
|
F clutch piston return spring |
DISASSEMBLE and INSPECT the F clutch piston
return spring for damage. INSTALL new components as necessary. REFER to: Transmission (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Overhaul). |
|
F clutch friction plates |
DISASSEMBLE and INSPECT the F clutch
friction and steel plates for wear and damage. INSTALL new components as
necessary. REFER to: Transmission (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Overhaul). |
WARNING: Airbags can kill or injure a child in a child restraint. Never place a rear-facing child restraint in front of an active airbag. If you must use a forward-facing child restraint in the front seat, move the seat upon which the child restraint is installed all the way back.