F 150 2WD Pickup V8-5.4L Prop SOHC VIN Z (1998)
Torque Converter: Service and Repair
Service and Replacement
1. The torque converter must be replaced if one or more of the following statements are true:
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A torque converter malfunction has been determined based on the complete diagnostic procedures.
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Converter stud(s), impeller hub or bushing is damaged.
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Discoloration of the torque converter (due to overheating).
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The torque converter is found to be out of specification when performing one of the following torque converter checks:
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One-Way Clutch Check
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End Play Check
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Stator to Turbine Interference Check
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Stator to Impeller Interference Check
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Torque Converter Leak Check
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Evidence of transmission assembly or fluid contamination due to the following transmission or converter failure modes:
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major metallic failure
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multiple clutches or clutch plate failures
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sufficient component wear which results in metallic contamination.
