Harsh or Soft 2-3/3-2 Shift Feel
Checks
| Cause
|
DEFINITION: One
of the two following conditions occurs during a second to third gear steady
throttle upshift, or a third to second gear coast, or a light to moderate
throttle detent downshift:
| • | Harsh shift feel -- an unacceptable quick gear change occurs. |
| • | Soft shift feel -- an unacceptable long gear change occurs. |
|
Automatic Transmission Fluid Level, soft shift only
| Low fluid level
|
Transmission
Main Line Pressure
| Low or high transmission main line pressure
|
Oil Filter Assembly, soft
shift only
|
| • | The oil filter assembly (100) is missing, plugged, or damaged. |
| • | The oil filter seal assembly (101) is missing or damaged. |
|
2-3 Accumulator Assembly
|
| • | Misassembled upside down 2-3 accumulator assembly |
| • | Damaged or missing 2-3 accumulator piston oil seal ring
(137B) |
| • | A damaged or missing 2-3 accumulator piston cushion spring
(143) or outer spring (138) |
| • | A stuck or binding 2-3 accumulator piston (136B) |
| • | Debris in the passages of the accumulator cover spacer plate (134) |
|
Control Valve Body Assembly
|
| • | Debris in the passages of the control valve body (301) or control
valve body spacer plate assembly and gasket assembly (396) |
| • | Missing or mislocated #4 or #9 ball check valves (372) |
| • | Misassembled 2-3 accumulator valve (340-345) line-up |
| • | Stuck or binding 2-3 accumulator valve (344) |
| • | Missing, damaged, or misassembled 2-3 accumulator valve
bushing (345), bore plug (343), or retainers (342, 385) |
|
Driven Sprocket
Support Assembly, soft shift only
| A plugged third clutch oil passage in the driven sprocket
support assembly (609)
|
Third Clutch Assembly
|
| • | The input clutch housing oil seal rings (628) are missing or are
damaged. |
| • | The third clutch ball check valve assembly (724) is missing or
is damaged. |
| • | The third clutch piston (642) is damaged. |
| • | The third clutch piston inner seal (641) is missing or damage. |
| • | The third clutch plates (645-648) are worn or misassembled. |
|
