Checks
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Causes
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1-2-3-4 Clutch Assembly
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| • |
Inspect for damaged, stripped or sheared splines
on 1-2-3-4 Clutch Plates (557-559), Backing Plate (560). |
| • |
Inspect for damaged or broken 1-2-3-4 Clutch
Piston (552) and Piston Seals damaged, worn or delaminating. |
| • |
Inspect for broken or fatigued 1-2-3-4 Clutch
Piston Return Spring (553). |
| • |
Inspect for broken or disengaged 1-2-3-4 Clutch
Piston Return Spring Retainer (554). |
| • |
Inspect for broken or fatigued 1-2-3-4 Clutch
Waved Plate (557). |
| • |
Inspect for disengaged or broken 1-2-3-4 Clutch
Backing Plate Retainer (561). |
| • |
Inspect for broken, porous or improper surface
finish or plugged oil passages of the Low-Reverse/1-2-3-4 Clutch
Housing (551). |
| • |
Inspect for worn or damaged Low-Reverse/ 1-2-3-4
Clutch Housing (551) splines. |
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Output Sun Gear Assembly (555)
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Inspect for stripped or sheared splines on the Output Sun Gear
shell.
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Reaction Carrier Assembly (567)
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| • |
Inspect for stripped or sheared splines on the
Input Ring Gear |
| • |
Inspect for disengaged or broken Input Ring Gear
Retainer. |
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Output Carrier Assembly (574)
|
| • |
Low/Reverse Clutch Assembly (OWC) (543) splines
stripped or sheared. |
| • |
Inspect for disengaged or broken Reaction Ring
Gear Retainer. |
|
Case Assembly (50)
|
|
1. |
Inspect for leaking or damaged 1-2-3-4 and
Low-Reverse Clutch Fluid Passage Seals (67). |
|
2. |
Inspect for worn or damaged case splines or
retainer ring grooves. |
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Input Sun Gear (571)
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Inspect for damaged gear teeth and damaged splines.
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Turbine Shaft (517)
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Inspect for damaged splines to the Input Shaft Sun Gear.
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Control Valve Body Assembly
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Inspect 1-2-3-4 Clutch Regulator Valve (417) and 1-2-3-4 Clutch
Boost Valve (414) for debris and stickyness.
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Control Solenoid (w/Body and TCM) Valve Assembly
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Check 1234 PC Solenoid 5 for proper operation. Refer to
Control Solenoid Valve and Transmission Control Module Assembly
Solenoid Performance Test .
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