Installation Procedure
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
- Install the exhaust camshaft actuator into the timing chain.
- Align the marked link of the timing chain with the timing mark on the exhaust camshaft position actuator sprocket (1).
- Install the exhaust camshaft actuator onto the exhaust camshaft.
- Install the exhaust camshaft actuator bolt.
Tighten:
- Tighten the exhaust camshaft actuator bolt the first pass to 25 N.m (18 lb ft).
- Use the J 36660-A to tighten the exhaust camshaft actuator bolt the final pass an additional 135 degrees.
- Remove the J-44217 . See Special Tools and Equipment .
- Install the top chain guide.
- Add threadlocker GM P/N 12345493 (Canadian P/N 10953488) to the top chain guide bolt threads.
- Install the top chain guide bolts.
Tighten: Tighten the top chain guide bolts to 10 N.m (89 lb in).
- Install the camshaft cover. Refer to Camshaft Cover Replacement .
IMPORTANT:
Ensure the alignment pin is engaged between the camshaft and the exhaust camshaft position actuator.
NOTE:
The camshaft actuator must be fully advanced during installation. Engine damage may occur if the camshaft actuator is not fully advanced.
NOTE:
Refer to Fastener Notice in Cautions and Notices.
IMPORTANT:
Ensure the camshaft actuator is rotated clockwise relative to the camshaft prior to tightening the bolt. Do not force the camshaft actuator to rotate clockwise. If it does not move easily, it is already fully advanced. New camshaft actuators are already packaged in the fully advanced (clockwise) position.