No Part Throttle or Delayed Downshifts
WARNING: This page is about a different car, the 2010 GMC Sierra and 2010 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
| Checks |
Causes |
| Input Housing Assembly (621) |
- 3-4 apply ring stuck in applied position
- Forward clutch not releasing
- Turbine shaft seals missing, cut or damaged
|
| Manual Valve Link (89) |
Disconnected |
| Valve Body Assembly (60) |
- 2-3 shift valve stuck
- Manual linkage not adjusted
- Spacer plate and gaskets incorrect, mispositioned or damaged
- Lo overrun valve stuck
- Orificed cup plug restricted, missing or damaged
|
| Reverse Input Clutch Assembly (606-614) |
- Clutch plate worn
- Reverse input housing and drum assembly cracked at weld
- Clutch plate retaining ring out of groove
- Return spring assembly retaining ring out of groove
- Seals cut or damaged
- Restricted apply passage
- Porosity in piston
- Belleville plate installed incorrectly
- Excessive clutch plate travel
- Oversized housing
|
| Lo and Reverse Clutch (694-696) |
- Clutch plates worn
- Porosity in piston
- Seals damaged
- Return spring assembly retaining ring mispositioned
- Restricted apply passage
|