Inspection and Verification
- Verify the customer concern by operating the system.
- Visually inspect for obvious signs of mechanical or electrical damage. Visual Inspection Chart Mechanical Feed and return tubes Connections to the automatic transmission and the automatic transmission fluid cooler Automatic transmission fluid level
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- If the concern is not visually evident, verify the symptom and refer to the symptom chart.
Symptom chart
| Condition | Possible sources | Action |
|---|
| Over heating of the automatic transmission. | Obstruction in the automatic transmission fluid cooler. | Flush out the automatic transmission fluid cooler with new automatic transmission fluid. If the flushing is unsuccessful install a new automatic transmission fluid cooler. |
| Over heating of the automatic transmission. | Obstruction in the automatic transmission fluid tubes. | Flush out the automatic transmission fluid cooler tubes with new automatic transmission fluid. If the flushing is unsuccessful install new automatic transmission fluid cooler tubes. |
| Loss of automatic transmission fluid | Connections to the automatic transmission and the automatic transmission fluid cooler. | Check the torque of the tubes. Check the tubes, connections and seals. |
| Loss of automatic transmission fluid | Leak at oil cooler. | Check the torque of the tubes. Check the tubes, connections and seals. INSTALL new oil cooler. |
