First Gear Only
Checks
| Cause
|
DEFINITION: The transmission only
provides first gear in Drive range. The vehicle accelerates from a stop in
first gear and does not upshift. First gear ratio is 2.921:1.
|
Control Valve
Body Assembly
|
| • | The 1-2 shift valve (318) is stuck or binding. |
| • | Debris is found in the control valve body (301) or the control
valve body spacer plate and gasket assembly (396) |
| • | The spacer plate and gaskets (369-371) are misassembled. |
|
Second Clutch Assembly
|
| • | A missing or not seated second clutch backing plate retaining
ring (627) |
| • | A missing or misassembled second clutch backing plate (626) |
| • | Worn, damaged, or misassembled clutch plates (623-625) |
| • | A missing or not seated second clutch spring retaining ring (622) |
| • | A damaged spring assembly (621) or piston (620) |
| • | A missing or damaged second clutch housing ball check valve assembly
(618) |
| • | A damaged second clutch housing assembly (617) |
|
Reverse Reaction Drum
| Damaged splines of the reverse reaction drum (669)
|
