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Home >> Ford >> 1990 >> Bronco II 4WD, Standard, M5OD-R1 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Test DF - Map/BP Sensors >> Test DF: Step 11
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Test DF: Step 11

11) Check Vacuum Hoses  With key off, check vacuum lines for correct routing. Refer to Vehicle Emission Control Identification (VECI) decal. Check for disconnections, kinks or blockage. Repair vacuum lines as necessary and repeat QUICK TEST. If vacuum lines are okay, go to next step.