Operation CHARM
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Ford Truck
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1993
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F 250 4WD Pickup V8-7.3L DSL
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Repair and Diagnosis
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Powertrain Management
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Testing and Inspection
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Pinpoint Tests
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TF - Transmission Speed Sensor
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TF90 - Continuous Code 639
TF90 - Continuous Code 639
Pinpoint Test TF90:
