Symptom Chart
E clutch
For E clutch operation,
REFER to: E Clutch (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Description and Operation).
E clutch
Condition | Possible Sources | Action |
E clutch does not apply | SSE is mechanically stuck off |
INSTALL a new solenoid. REFER to: Solenoid (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Removal and Installation). |
E clutch control valve stuck off |
DISASSEMBLE, CLEAN and INSPECT the 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 - 8-Speed Automatic Transmission – 8F35/8F40, Overhaul). |
|
E CL CONTR, hydraulic circuit 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 - 8-Speed Automatic Transmission – 8F35/8F40, Overhaul). |
|
E clutch piston seals |
INSPECT the components for wear and damage. INSTALL new components as necessary. REFER to: Transmission (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Overhaul). |
|
E clutch hub |
INSPECT the components for wear and damage. CLEAN and/or INSTALL new components as necessary. REFER to: Transmission (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Overhaul). |
|
E clutch friction plates |
INSPECT the components for wear and damage. INSTALL new components as necessary. REFER to: Transmission (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Overhaul). |
|
E clutch always applied | SSE mechanically stuck |
INSTALL a new solenoid. REFER to: Solenoid (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Removal and Installation). |
E clutch control valve or CL E latch valve stuck on |
DISASSEMBLE, CLEAN and INSPECT the 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 - 8-Speed Automatic Transmission – 8F35/8F40, Overhaul). |
|
E CL CONTR, hydraulic circuit cross leaks |
DISASSEMBLE and INSPECT the main control
valve body and separator plate passages for leaks or damage. INSTALL new
components as necessary. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Overhaul). |
|
E clutch hub, clutch and planetary carrier, No. 4 ring gear |
INSPECT the components for wear and damage. INSTALL new components as necessary. REFER to: Transmission (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Overhaul). |
|
E clutch friction plates |
INSPECT the components for wear and damage. INSTALL new components as necessary. REFER to: Transmission (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Overhaul). |
|
E clutch delayed/soft/slipping apply | Incorrect transmission strategy programmed into PCM / TCM . |
PERFORM the Transmission Strategy Download, REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, General Procedures). |
Low line pressure |
PERFORM line pressure test. REFER to: Special Testing Procedures (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Diagnosis and Testing). |
|
SSE mechanically sticking |
INSTALL a new solenoid. REFER to: Solenoid (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Removal and Installation). |
|
E clutch control valve sticking |
DISASSEMBLE, CLEAN and INSPECT the 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 - 8-Speed Automatic Transmission – 8F35/8F40, Overhaul). |
|
Gain control valve stuck in default position. |
DISASSEMBLE, CLEAN and INSPECT the 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 - 8-Speed Automatic Transmission – 8F35/8F40, Overhaul). |
|
E CL CONTR, E CL-FB2 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 - 8-Speed Automatic Transmission – 8F35/8F40, Overhaul). |
|
E clutch friction plates |
INSPECT the components for wear and damage. INSTALL new components as necessary. REFER to: Transmission (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Overhaul). |
|
E clutch piston seals |
INSPECT the components for wear and damage. INSTALL new components as necessary. REFER to: Transmission (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Overhaul). |
|
E clutch harsh apply | Incorrect transmission strategy programmed into PCM / TCM . |
PERFORM the Transmission Strategy Download, REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, General Procedures). |
High line pressure |
PERFORM line pressure test. REFER to: Special Testing Procedures (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Diagnosis and Testing). |
|
SSE mechanically sticking |
INSTALL a new solenoid. REFER to: Solenoid (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Removal and Installation). |
|
E clutch control valve sticking |
DISASSEMBLE, CLEAN and INSPECT the valve. If
the bore or valve is damaged or worn, INSTALL a new main control valve
body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Overhaul). |
|
Gain control valve stuck in applied position |
DISASSEMBLE, CLEAN and INSPECT the 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 - 8-Speed Automatic Transmission – 8F35/8F40, Overhaul). |
|
E CL CONTR, E CL-FB2 hydraulic circuit 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 - 8-Speed Automatic Transmission – 8F35/8F40, Overhaul). |
|
E clutch friction plates |
INSPECT the components for wear and damage. INSTALL new components as necessary. REFER to: Transmission (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Overhaul). |
|
E clutch piston return springs |
INSPECT the components for wear and damage. INSTALL new components as necessary. REFER to: Transmission (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Overhaul). |
Wet or winter driving conditions with ice, snow or salty road mist can cause inconsistent and unexpected wiping or smearing.
Autowipers On. High sensitivity. Low sensitivity.