Powertrain
Diagnosis and Testing - D Clutch
In this manual: Powertrain
~7min read
Symptom Chart
Clutch D
For D clutch operation,
Refer to: D Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission - 10R60, Description and Operation).
Clutch D
| Condition | Possible Sources | Action |
| D Clutch Inoperative | SSD mechanically stuck in the OFF position | INSTALL a new solenoid. REFER TO: Shift Solenoids (SS) (307-01A Automatic Transmission - 10-Speed Automatic Transmission - 10R60, Removal and Installation). |
| D clutch control valve stuck in the OFF position | DISASSEMBLE, CLEAN and INSPECT the D clutch control valve. If the orifice 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). |
|
| D clutch hydraulic circuits blocked/leaking | DISASSEMBLE and INSPECT the main control valve body and separator plate passages for debris/restriction. CLEAN as necessary. Refer to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission - 10R60, Removal and Installation). |
|
| If a leak is detected, INSPECT the front support assembly, Teflon input shaft seals and D clutch piston seals for leakage. INSTALL new components as necessary. Refer to: Transmission Case (307-01B Automatic Transmission - 10-Speed Automatic Transmission - 10R80, Overhaul). |
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| CDF clutch drum, No. 3 planetary carrier | DISASSEMBLE and INSPECT the CDF clutch drum and No. 3 planetary carrier for wear and damage. INSTALL new components as necessary. Refer to: Transmission Case (307-01B Automatic Transmission - 10-Speed Automatic Transmission - 10R80, Overhaul). |
|
| D clutch piston seals | DISASSEMBLE and INSPECT the D clutch piston seals for wear and damage. INSTALL new components as necessary. Refer to: Transmission Case (307-01B Automatic Transmission - 10-Speed Automatic Transmission - 10R80, Overhaul). |
|
| D Clutch Friction Plates | DISASSEMBLE and INSPECT the D clutch friction and steel plates for wear and damage. INSTALL new components as necessary. Refer to: Transmission Case (307-01B Automatic Transmission - 10-Speed Automatic Transmission - 10R80, Overhaul). |
|
| D clutch always applied | SSD mechanically stuck in the ON position | INSTALL a new solenoid. REFER TO: Shift Solenoids (SS) (307-01A Automatic Transmission - 10-Speed Automatic Transmission - 10R60, Removal and Installation). |
| D clutch control valve stuck in the ON position | DISASSEMBLE, CLEAN and INSPECT the D clutch control valve. If the orifice 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). |
|
| D clutch hydraulic circuit leakage | DISASSEMBLE and INSPECT the main control valve body and separator plate passages for cracks, distortion 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). |
|
| CDF clutch drum, No. 3 planetary carrier | DISASSEMBLE and INSPECT components for wear and damage. INSTALL new components as necessary. REFER TO: Transmission (307-01B Automatic Transmission - 10-Speed Automatic Transmission - 10R80, Overhaul). |
|
| D Clutch Piston Return Spring | DISASSEMBLE and INSPECT the D clutch piston return spring for damage. INSTALL new components as necessary. Refer to: Transmission Case (307-01B Automatic Transmission - 10-Speed Automatic Transmission - 10R80, Overhaul). |
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| D Clutch Friction Plates | DISASSEMBLE and INSPECT the D clutch friction and steel plates for wear and damage. INSTALL new components as necessary. Refer to: Transmission Case (307-01B Automatic Transmission - 10-Speed Automatic Transmission - 10R80, Overhaul). |
|
| D clutch delayed/soft/slipping | Incorrect shift strategy programmed in the PCM/TCM. | PERFORM the shift strategy download and 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, General Procedures). |
| Low Line Pressure | PERFORM the line pressure test. If line pressure is low, REFER TO the line pressure diagnostics chart. REFER TO: Special Testing Procedures (307-01A Automatic Transmission - 10-Speed Automatic Transmission - 10R60, Diagnosis and Testing). |
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| SSD mechanically sticking |
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| D clutch control valve sticking |
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| D clutch hydraulic circuits blocked/leaking | DISASSEMBLE and INSPECT the main control valve body and separator plate passages for debris, restrictions and leaks. CLEAN as necessary. REFER TO: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission - 10R60, Removal and Installation). |
|
| PERFORM an air pressure test on the D clutch. Refer to: Special Test 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 D clutch piston seals for leakage. INSTALL new components as necessary. Refer to: Transmission Case (307-01B Automatic Transmission - 10-Speed Automatic Transmission - 10R80, Overhaul). |
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| D clutch piston seals | DISASSEMBLE and INSPECT the D clutch piston seals for wear and damage. INSTALL new components as necessary. Refer to: Transmission Case (307-01B Automatic Transmission - 10-Speed Automatic Transmission - 10R80, Overhaul). |
|
| D Clutch Friction Plates | DISASSEMBLE and INSPECT the D clutch friction and steel plates for wear and damage. INSTALL new components as necessary. Refer to: Transmission Case (307-01B Automatic Transmission - 10-Speed Automatic Transmission - 10R80, Overhaul). |
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| D Clutch Hard Engagement | Incorrect shift strategy programmed in the PCM/TCM. | PERFORM the shift strategy download and 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, General Procedures). |
| High line pressure | PERFORM the line pressure test. If line pressure is high, REFER TO the line pressure diagnostics chart. REFER TO: Special Testing Procedures (307-01A Automatic Transmission - 10-Speed Automatic Transmission - 10R60, Diagnosis and Testing). |
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| SSD mechanically sticking |
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| D clutch control valve sticking |
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| D clutch hydraulic circuits blocked/leaking | DISASSEMBLE and INSPECT the main control valve body and separator plate passages for debris, restrictions and leaks. CLEAN as necessary. REFER TO: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission - 10R60, Removal and Installation). |
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| D Clutch Piston Return Spring | DISASSEMBLE and INSPECT the D clutch piston return spring for damage. INSTALL new components as necessary. Refer to: Transmission Case (307-01B Automatic Transmission - 10-Speed Automatic Transmission - 10R80, Overhaul). |
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| D Clutch Friction Plates | DISASSEMBLE and INSPECT the D clutch friction and steel plates for wear and damage. INSTALL new components as necessary. Refer to: Transmission Case (307-01B Automatic Transmission - 10-Speed Automatic Transmission - 10R80, Overhaul). |
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