ENGAGEMENT CONCERN: DELAYED/SOFT REVERSE OR FORWARD
| Possible Component | Reference/Action |
|---|---|
| 305 - HYDRAULIC/MECHANICAL ROUTINE | |
| Fluid | |
| Incorrect level, low | Fill to correct level. |
| Condition | Inspect fluid level and condition. Refer to PRELIMINARY INSPECTION . |
| External Shift Linkages | |
| Damaged, out of adjustment or misassembly | Inspect and repair as necessary. Verify linkage adjustment. Refer to AUTOMATIC TRANSAXLE-TRANSMISSION EXTERNAL CONTROLS - CD4E . After repairing linkage, verify that the transmission range (TR) sensor is correctly adjusted. |
| Incorrect Pressures | |
| Low line pressure | Check pressure at line tap. Carry out Line Pressure and Stall Speed Tests. Refer to SPECIAL TESTING PROCEDURES . If pressure is low, check the following possible components: main control, pump assembly, clutch assemblies, fluid filter and seal assembly, recirculating seal. |
| Internal Shift Linkages | |
| Damaged, disconnected | Inspect and service as required. If servicing the linkage, verify that the TR sensor is correctly adjusted. Refer to TRANSMISSION RANGE (TR) SENSOR . |
| Pump Assembly | |
| Bolts out of torque specification | Adjust bolts to specification. |
| Gaskets damaged | Inspect for damage. Install new as necessary. |
| Porosity/cross leaks/ball plug missing or leaking, or passage blockage | Install a new pump assembly. |
| Pump support seal rings, No. 3 or No. 4 (Forward), or No. 6 or No. 7 (Reverse), damaged | Inspect for damage. Repair as necessary. |
| Pump gear/pocket damaged | Inspect for damage. Repair as necessary. |
| Separator plate damaged | Inspect for damage. Repair as necessary. |
| Fluid Filter and Seal Assembly | |
| Filter/seal damaged, plugged | Install new filter and seal assembly. |
| Recirculating seal damaged or out of position | Install new recirculating seal. |
| Main Controls | |
| Bolts out of torque specification | Adjust bolts to specification. |
| Gaskets damaged | Inspect for damage. Install new as necessary. |
| Manual valve, main regulator valve, low/reverse modulator valve stuck, damaged or misassembled | Inspect for damage. Install new as necessary. |
| Separator plates damaged | Inspect for damage. Install new as necessary. |
| Pressure tap plate/gasket leaks, damaged, misassembled | Inspect for damage. Install new as necessary. |
| Low/Reverse Clutch Assembly (Reverse Only) | |
| Carry out Air Pressure Test. | |
| Piston or seals damaged | Inspect for damage. Repair as necessary. |
| Friction elements damaged, worn | Inspect for damage. Repair as necessary. |
| Return spring damaged | Inspect for damage. Repair as necessary. |
| Piston bore damaged | Inspect for damage. Repair as necessary. |
| Excessive clutch pack end clearance | Inspect for damage. Repair as necessary. |
| Reverse Clutch Assembly (Reverse Only) | |
| Carry out Air Pressure Test. | |
| Seals or piston damaged | Inspect for damage. Repair as necessary. |
| Check ball damaged | Inspect for damage. Repair as necessary. |
| Friction elements damaged, worn | Inspect for damage. Repair as necessary. |
| Return spring worn, damaged | Inspect for damage. Repair as necessary. |
| Piston bore damaged | Inspect for damage. Repair as necessary. |
| Excessive clutch pack end clearance | Inspect for damage. Repair as necessary. |
| Forward Clutch Assembly (Forward Only) | |
| Carry out Air Pressure Test. | |
| Seals or piston damaged | Inspect for damage. Repair as necessary. |
| Ball check damaged, missing or not seating correctly | Inspect for damage, correct seating or missing. Install new cylinder as necessary. |
| Friction elements damaged, worn or excessive end clearance | Inspect for damage and end clearance. Repair as necessary. |
| Forward/Coast/Direct Clutch Cylinder Assembly | |
| Reverse seal ring damaged or missing | Inspect for damage. Repair as necessary. |
| Cylinder damaged or leaking | Inspect for damage. Repair as necessary. |
DIAGNOSTIC ROUTINES - ENGAGEMENT CONCERN DELAYED/SOFT REVERSE OR FORWARD