Sable AWD V6-3.5L (2008)
Torque Converter: Testing and Inspection
Torque Converter Diagnosis
Torque Converter Diagnosis
Prior to torque converter installation, all diagnostic procedures must be followed. This is to prevent the unnecessary installation of new or
remanufactured torque converters. Only after a complete diagnostic evaluation can the decision be made to install a new or remanufactured torque
converter.
Begin with the normal diagnostic procedures as follows:
1. Preliminary Inspection See: Transmission Control Systems/Testing and Inspection/Initial Inspection and Diagnostic Overview/Preliminary
Inspection
2. Know and Understand the Customer's Concern
3. Verify the Concern - carry out the torque converter operation test. See: Transmission Control Systems/Testing and Inspection/Component Tests
and General Diagnostics/Torque Converter Clutch (TCC) Operation Test
4. Carry out Diagnostic Procedures:
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Run on-board diagnostics. Refer to Diagnostics. See: Transmission Control Systems/Testing and Inspection/Initial Inspection and Diagnostic
Overview/Diagnostics
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Repair all non-transmission related DTCs first.
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Repair all transmission DTCs.
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Rerun On-Board Diagnostic to verify repair.
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Carry out Line Pressure Test. Refer to Special Testing Procedures. See: Transmission Control Systems/Testing and Inspection/Component
Tests and General Diagnostics/Line Pressure Test
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Carry out Stall Speed Test. Refer to Special Testing Procedures. See: Transmission Control Systems/Testing and Inspection/Component
Tests and General Diagnostics/Stall Speed Test
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Carry out diagnostic routines. Refer to Diagnosis By Symptom. See: Transmission Control Systems/Testing and Inspection/Symptom
Related Diagnostic Procedures/Symptoms
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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 repair as required, before installing a new torque
converter.