Yukon XL 4WD V8-5.3L (2011)
5. Remove the valve lifters (209, 219) from the guide (210).
Note: The active fuel management lifters are installed into the guide by aligning the notched area of the guide (1) with the raised surface on the
side of the lifter (2).
6. Organize or mark the components so that they can be installed in the same location from which they were removed, if required.
7. Clean and inspect the valve lifters, if required. Refer to Valve Lifter and Guide Cleaning and Inspection See: Service and Repair/Overhaul/47.
Valve Lifter and Guide Cleaning and Inspection
Installation Procedure
Note:
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If camshaft replacement is required, the valve lifters must also be replaced.
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When reusing valve lifters, install the lifters to their original locations.
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Each of the 4 valve guide assemblies will contain 2 active fuel management valve lifters and 2 non active fuel management valve lifters.
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With the lifters and guides properly installed, cylinders 1, 4, 6, and 7 lifter bores will each contain 2 active fuel management valve lifters.
