B4000 SE Regular Cab 4WD V6-4.0L OHV (1999)
Air Cleaner Fresh Air Duct/Hose: Service and Repair
1. Disconnect the intake air temperature (IAT) sensor connector.
2. Remove the crankcase ventilation tube.
3. Loosen the clamps and remove the air cleaner outlet tube.
NOTE: Visually check the air cleaner intake tube and duct for any foreign objects or restrictions.
4. Install in reverse order of removal.