2010 GMC Yukon Air Hose

The recommended torque is 8 Nm (70 lb in).

You can locate the leaking area with soap and water or a stethoscope, turn the ignition ON, with the engine OFF, install a scan tool, exhaust the air from the system for at least 60 seconds, cut and remove the leaking line section, remove the plastic retainer pin from one of the nuts, slide the air line tube onto the nut until the line bottoms in the rubber seal, hold the air line tube in position, install the air line tube to the other end of the coupling, the air line tube to the vehicle, ensure that the vehicle is on level ground and turn the ignition ON, with the engine OFF, install a scan tool, operate the air compressor for 30 seconds or until the rear of the vehicle begins to rise, remove the scan tool, cycle the ignition OFF, then back On, with the engine ON to allow the air suspension system to regain the desired rear suspension position.