Camshaft Carrier Disassemble
WARNING: This page is about a different variant/trim than selected.
 Courtesy of GENERAL MOTORS COMPANY
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Inspect the engine oil manifold check valves (1). Damaged, restricted or clogged check valves must be replaced. If check valves require replacement, proceed to step 2..
- Flip over and push out from the bottom side.
- Clean check valve bore and related passages thoroughly to remove any debris.