|
|
The valve rocker arm The valve push rod The valve lifter The valve lifter guide The piston Improper lubrication to the valve rocker arms Inspect the following components and repair or replace, as required: The valve rocker arm The valve push rod The valve lifter The oil filter bypass valve The oil pump and pump screen The engine block oil galleries Broken valve spring Replace the valve spring and spring shim. Worn or dirty valve lifters Replace the valve lifters, as required. Stretched or broken timing chain and/or Replace the timing chain and sprockets. Worn engine camshaft lobes 1. Inspect the engine camshaft lobes. 2. Replace the camshaft and valve lifters, as required. Worn valve guides or valve stems Inspect the following components and repair, The valves The valve guides Stuck valves Inspect the following components and repair, The valves The valve guides
2008 Hummer H3 2008 ENGINE Engine Mechanical - 5.3L - H3
|