TrailBlazer 4WD L6-4.2L VIN S (2002)
7. Remove the camshafts.
Installation Procedure
1. Coat the camshaft journals, camshaft journal thrust face, and camshaft lobes with clean engine oil.
2. Install the intake and exhaust camshafts to their original positions.
3. Install the J 44221 with the camshaft flats up and the number 1 cylinder at top dead center.
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.
Important: Install the camshaft caps onto their original locations. The camshaft caps are pin stamped for direction and numerical order.
