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2004
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F 450 2WD Super Duty V10-6.8L VIN S
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Repair and Diagnosis
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Heating and Air Conditioning
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Testing and Inspection
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Pinpoint Tests
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Test Y
Test Y
PINPOINT TEST Y: THE FRONT/REAR AUXILIARY BLOWER MOTOR SWITCH OPERATES ONLY IN HI
Test Y1-Y2:
Test Y2-Y4:
Test Y4-Y5:
