Air Cleaner Outlet Resonator Replacement. GMC Truck Envoy

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2008 🢒 Envoy - 2WD 🢒 Engine 🢒 Engine Controls and Fuel - 4.2L 🢒 Air Cleaner Outlet Resonator Replacement

Removal Procedure

Loosen the air cleaner outlet duct and air cleaner outlet resonator clamps (2).
Disconnect the air cleaner outlet duct from the air cleaner outlet resonator (3).

Remove the 2 air cleaner outlet resonator to engine bolts (4).
Disconnect the crankcase ventilation hose (1) from the valve cover port (2).
Disconnect the electrical connector to the intake air temperature (IAT) sensor.
Remove the air cleaner outlet resonator assembly (5) from the engine.

Installation Procedure

Connect the electrical connector to the IAT sensor.

Install the air cleaner outlet resonator assembly (5) to the engine making sure of the following:

•	The crankcase ventilation hose (1) is connected to the valve cover port (2).

•	The air cleaner outlet resonator (5) is properly fit to the throttle body assembly.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

Install the 2 air cleaner outlet resonator to engine bolts (4).

Tighten
Tighten the resonator to engine bolts to 6 N·m (53 lb in).

Connect the air cleaner outlet duct to the air cleaner outlet resonator (3).
Properly position the air cleaner outlet duct and air cleaner outlet resonator clamps (2).

Tighten
Tighten the clamps (2) to 4 N·m (35 lb in).