OEM GMC Sierra 3500 Classic Air Hose

GMC Sierra 3500 Classic Air Hose Parts Questions & Experts Answers

• Connector Tube
  15188715
  Q: How to replace the air hose resonator outlet duct on GMC Sierra 3500 Classic?

  A: Start by taking out the intake manifold sight shield and follow this by removing the positive crankcase ventilation (PCV) line attached to the air cleaner outlet duct. Next remove the radiator inlet hose clamp retainer and the radiator vent inlet hose retainer which are attached to the outlet duct. You need to loosen the air cleaner outlet duct clamp both at the mass air flow (MAF)/intake air temperature (IAT) sensor and the Throttle Body clamp. Using a flat screwdriver lift the air cleaner outlet duct over the resonator tab to remove it from the intake manifold stud. Once detached remove the duct from the Throttle Body and maf/iat sensor. When installing the air cleaner outlet duct you should attach it to the Throttle Body and maf/iat sensor but ensure the resonator tab correctly positions against the intake manifold stud. Tighten the clamp at both the maf/iat sensor and Throttle Body to 4 n.m (35 lb in) while pressing down on the duct where it covers the resonator tab. Reinstall the radiator vent inlet hose retainer, the radiator inlet hose clamp retainer, the pcv line to the air cleaner outlet duct, and the intake manifold sight shield.