Installation Procedure
WARNING: This page is about a different car, the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, and 2002 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fastener 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 any studs that were removed.
Tighten
Tighten the exhaust manifold studs to 18 N.m (13 ft lbs).
- Install the catalytic converter pipe and NEW seal to the exhaust manifold.
- Install the catalytic converter pipe to exhaust manifold flange nuts.
Tighten
Tighten the catalytic converter pipe to manifold flange bolts to 65 N.m (48 ft lbs).
- Lower the vehicle.
CAUTION: When inspecting or replacing exhaust system components, make sure there is adequate clearance from all points on the underbody to prevent overheating of the floor pan and possible damage to the passenger compartment insulation and trim materials.
- Inspect for any exhaust leaks and proper alignment of the exhaust system.