Torque Converter Diagnosis: Notes
WARNING: This page is about a different car, the 2010 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
Special Tools
| Illustration | Tool Name | Tool Number |
|---|---|---|
| Vehicle Communication Module (VCM) and Integrated Diagnostic System (IDS) software with appropriate hardware, or equivalent scan tool |
Prior to new 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 torque converter.
Begin with the normal diagnostic procedures as follows:
- Preliminary inspection.
- Know and understand the customer's concern.
- Verify the condition - carry out the torque converter operation test.
- Carry out diagnostic procedures.
- Carry out on-board diagnostics; refer to DIAGNOSTIC TESTS .
- Repair all non-transmission related DTCs first.
- Repair all transmission DTCs.
- Rerun on-board diagnostic to verify repair.
- Carry out Line Pressure Test. Refer to Special Testing Procedures .
- Carry out Stall Speed Test. Refer to Special Testing Procedures .
- Carry out Diagnostic Routines. Refer to Diagnosis By Symptom .
- Use the Diagnosis by Symptom 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 changing the torque converter.
- Carry out on-board diagnostics; refer to DIAGNOSTIC TESTS .