Heater Pipes Replacement 2.2L (LN2)

1. Drain the engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling.
2. Remove the air cleaner inlet duct. Refer to Air Cleaner Inlet Duct Replacement in Engine Controls - 2.2L.
3. Reposition the ignition module. Refer to Ignition Control Module Replacement in Engine Controls - 2.2L.
4. Disconnect the heater hoses from the heater pipe assembly.
5. Remove the bolt and nut that retain the pipe to the engine.
6. Remove the heater pipe assembly.

1. Install the heater pipe 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.

2. Install the bolt and nut in order to retain the pipe to the engine.

Tighten
Tighten the bolt and nut to 25 N·m (18 lb ft).

3. Connect the heater hoses to the heater pipe assembly.
4. Reposition and install the ignition control module. Refer to Ignition Control Module Replacement in Engine Controls - 2.2L.
5. Install the air inlet duct. Refer to Air Cleaner Inlet Duct Replacement in Engine Controls - 2.2L.
6. Refill the engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling.