Sable V6-183 3.0L DOHC VIN S MFI (1997)
Torque Converter: Flow of Diagnosis
DESCRIPTION
Prior to torque converter replacement all diagnostic procedures must be followed. This is to prevent the unnecessary replacement of good torque
converters. Only after a complete diagnostic evaluation can the decision be made to replace the torque converter.
PROCEDURE
Begin with the normal diagnostic procedures as follows:
1. Preliminary inspection. See: Transmission Control Systems/Testing and Inspection
2. Know and Understand the Customer's Concern.
3. Verify the Concern. Perform the Torque Converter Clutch Operation Test. See: Torque Converter Clutch/Testing and Inspection
4. Perform Diagnostic Procedures
a. Run On-Board Diagnostics. See: Transmission Control Systems/Testing and InspectionService all Non-Transaxle related DTCs first.
Service all DTCs. Rerun On-Board Diagnostic to verify service.
b. Perform Line Pressure Test.
c. Perform Stall Speed Test.
d. Diagnosis by Symptom Routines. See: Testing and Inspection/Symptom Related Diagnostic Procedures
Use the index to locate the appropriate routine that best describes the symptom(s). The routine will list all possible components that may
cause or contribute to the symptom. Check each component listed, diagnose and service as required, before servicing the torque converter.
