C Yukon 2WD V8-5.7L VIN R (1999)
4. Remove the valve lifter guides.
IMPORTANT: Place the valve lifters; in a rack in the upright position in order to maintain the oil inside the valve lifter.
5. Place the valve lifters in an organizer rack.
6. A stuck valve lifter can be removed using the J 3049-A. Refer to Cylinder Head Replacement to obtain access to the valve lifter.
7. Inspect the valve lifter. Refer to Valve Lifters and Guides Clean and Inspect.
INSTALLATION PROCEDURE
IMPORTANT:
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When new valve lifters or a new engine camshaft is installed, change the engine oil and the oil filter. Refer to Engine Oil and Oil Filter
Replacement.
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Add Engine Oil Supplement GM P/N 1052367 or the equivalent to the engine oil.
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Replace the valve lifters as required when a new engine camshaft is installed.