Slips in Drive or No Drive
Checks
| Cause
|
DEFINITION: A large engine RPM
increase is noted with little or no vehicle forward speed increase during
the following conditions:
| • | The transmission is in Drive range. |
| • | The vehicle is stopped or moving slowly. |
| • | The vehicle brakes are not applied. |
| • | The throttle is opened 25 percent or greater. |
|
Automatic Transmission Fluid Level
| Low fluid level
|
Transmission Main Line Pressure
| Low transmission main line
pressure
|
Manual Linkage
| Misadjusted
|
Oil Filter Assembly
|
| • | The oil filter assembly (100) is missing, plugged, or damaged. |
| • | The oil filter seal assembly (101) is missing or damaged. |
|
Accumulator and Manual 2-1 Band Servo Assembly
|
| • | A loose or damaged forward band servo oil pipe (124). |
| • | Loose manual 2-1 band servo cover or accumulator cover bolts
(103, 131). |
| • | Missing or damaged manual 2-1 servo cover gasket (105). |
| • | A damaged accumulator cover spacer plate assembly (134). |
|
Forward Band Servo Assembly
|
| • | A servo piston oil seal ring (18) is missing or is damaged. |
| • | A servo piston (16) is damaged or is stuck in the servo cover
(13). |
| • | The servo piston cushion spring (19) or the retainer (20) is missing
or damaged. |
| • | The servo piston pin (21) is not engaged to the forward band assembly
(688). |
| • | The forward band assembly (688) is worn or burned. |
| • | The forward band assembly (688) is disengaged from the anchor
pin (117A). |
| • | The anchor pin (117A) is loose or missing. |
|
Control
Valve Body Assembly
| The #3 Ball check valve (372) is missing.
|
Torque Converter Assembly
|
| • | The torque converter assembly (1) stator clutch is not
holding |
| • | The torque converter assembly (1) blades are broken or
damaged |
|
Drive Link Assembly
|
| • | The drive link assembly (507) is broken. |
| • | The drive/driven sprockets (516/506) are damaged. |
|
Input Clutch Assembly
|
| • | The input clutch sprag assembly (722) is damaged or misassembled. |
| • | The input clutch housing oil seal rings (628) are missing or are
damaged. |
| • | The input clutch housing ball check valve assembly (633) is missing
or is damaged. |
| • | The input clutch piston inner/outer seals (634/635) are missing
or are damaged. |
| • | The input clutch piston (636) is damaged. |
| • | The input clutch plates (654-658) are worn. |
|
1-2 Clutch Roller Assembly
| The 1-2 clutch roller assembly (683) is damaged.
|
Input and Reaction
Carrier Assemblies
| The input carrier assembly (672) or the reaction carrier assembly (675)
components are damaged.
|
Differential Carrier Assembly
|
| • | The park pawl assembly (694) is broken or damaged. |
| • | The sun gear shaft (689), the internal gear assembly (693), or
the carrier assembly (700) components are damaged. |
|
Forward Band Servo
| Forward band servo piston apply pin (21) nicked or scratched
|
