Mike's Workshop Manuals
: Service manuals for every vehicle
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Ford
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1990
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Bronco 4.9 Y, Standard, M5OD-R2
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - Tests W/Codes
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Test Km - WAC & A/C Demand Switch
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Test Km: Step 16
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WAC Relay
WAC Relay
2.3L PFI (Ranger)
2.9L PFI (Bronco II & Ranger)
3.0L PFI (Aerostar)
4.0L PFI (Aerostar & Ranger)