Slipping or Rough 1-2 Shift
Checks
| Causes
|
Valve Body Assembly (60)
|
• | 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 (13-28)
|
• | 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 (55-57, 104)
|
• | 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 (602)
| Worn or mispositioned
|
Oil Pump Assembly (4) or Case (103)
| Faces not flat
|