You can remove the left valve rocker arms and the stationary hydraulic lash adjusters (SHLA), then clean and inspect the valve lifters.
By Bob
GM Specialist
02/11/2022
Q: How do you remove the right valve lifter?
A:
You can remove the right valve rocker arms and the stationary hydraulic lash adjusters (SHLA), then clean and inspect the valve lifters.
By Bob
GM Specialist
02/11/2022
Q: What's the installation procedure for the right valve lifter?
A:
The installation procedure is to fill the SHLA with clean engine oil GM P/N 12378006 or equivalent, then install the new SHLAs into the bores and install the right valve rocker arms.
By Bob
GM Specialist
02/11/2022
Q: What's the installation procedure for the left valve lifter?
A:
The installation procedure is to fill the SHLA with clean engine oil GM P/N 12378006 or equivalent, then install the new SHLAs into the bores and install the left valve rocker arms.
By Bob
GM Specialist
02/11/2022
FAQ for Other Repair Info
Q: What's the recommended torque for the oil level indicator tube bolt?
A:
The recommended torque is 10 N.m (89-inch lbs.).
Q: What tools are needed to remove and install the left valve stem oil seal and valve spring?
A:
You will need J 38820 Valve Stem Seal Remover and Installer, J 39313 Spark Plug Port Adapter, J 43059 Valve Retainer Remover/Installer, J 44211 On-Vehicle Valve Spring Compressor, and EN 46326 Flywheel Holder.