Slipping or No Second Gear
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
Slipping or No Second Gear
| Checks |
Cause |
| DEFINITION: A large engine RPM increase is noted in second gear, Drive range, with little or no vehicle forward speed increase. First, third, and fourth gear operation are normal. Shifts into second gear are soft or do not occur. Second gear ratio is 1.568:1. |
| Automatic Transmission Fluid Level |
Low fluid level |
| Transmission Main Line Pressure |
Low transmission main line pressure |
| Oil Filter Assembly |
- The oil filter assembly (100) is missing, plugged, or damaged.
- The oil filter seal assembly (101) is missing or is damaged.
|
| Control Valve Body Assembly |
- The 1-2 shift valve (318) is stuck or binding.
- Debris is found in the passages of the control valve body (301) or of the control valve body spacer plate and gasket assembly (396)
|
| Driven Sprocket Support Assembly |
- Damaged second clutch housing oil seal rings (613)
- Damaged four lobe oil seal ring seals (612)
- Worn or damaged second clutch housing bushings (616, 619)
|
| Second Clutch Assembly |
- Missing or not seated second clutch backing plate retaining ring (627)
- Missing or misassembled second clutch backing plate (626)
- Worn, damaged, or misassembled clutch plates (623-625)
- Missing or not seated second clutch spring retaining ring (622)
- Damaged spring assembly (621) or piston (620)
- Missing or damaged second clutch housing ball check valve assembly (618)
- Damaged second clutch housing assembly (617)
|