Inspection and Verification
NOTE:
When internal wear/damage occurs in the transmission, metal particles and clutch plate material can travel into the torque converter, the transmission fluid cooler tubes, the transmission fluid cooler, the transmission fluid warmer (if equipped), and the cooler bypass valve (if equipped). These contaminants are a major cause of recurring transmission concerns. To prevent future concerns, remove these contaminants from the cooling system before placing the transmission back into use. Refer to the Transmission Fluid Cooler - Backflushing and Cleaning
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- Verify the customer concern by operating the vehicle to duplicate the condition.
- Visually inspect for obvious signs of mechanical or electrical damage.
- If the inspection reveals obvious concerns that can be readily identified, repair as necessary.
- Install new components if a transmission fluid leak is found in any of the transmission cooling components.
- If the cause is not visually evident, check for diagnostic trouble codes (DTCs). Refer to the Diagnostic Trouble Code (DTC) Chart .
- If no diagnostic trouble codes (DTCs) are present, verify the symptom and refer to the Symptom Chart .