Slipping or Rough 1-2 Shift
Checks
| Causes
|
Valve Body Assembly
|
| • | Mislocated valve body to spacer plate checkball or checkballs. |
| • | 1-2 Shift valve train stuck due to sediment |
| • | Gaskets or spacer plate incorrect, mispositioned or damaged |
| • | 1-2 Accumulator valve stuck or damaged |
| • | 4-3 sequence valve stuck or damaged |
| • | #1 or #8 checkball missing or mis-located |
| • | 1-2 accumulator valve bushing rotated 180° |
|
2-4 Servo Assembly
|
| • | Apply pin too long or too short |
| • | 2nd servo apply piston seal missing, cut or damaged |
| • | Restricted or missing oil passages |
| • | Servo bore in case damaged |
|
2nd Accumulator
|
| • | Porosity in 1-2 accumulator cover or piston |
| • | Piston seal or groove damaged |
| • | Nicks or burrs in 1-2 accumulator housing |
| • | Missing or restricted oil passage |
| • | 1-2 accumulator piston spring not seated |
| • | Rough finish in 1-2 accumulator bore in case |
| • | A cracked 1-2 accumulator piston - allowing fluid to leak by |
|
2-4 Band
| Worn or mispositioned
|
Oil Pump Assembly or Case
| Faces not flat
|
