Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Valve Lifter Installation
Important: If a new camshaft is installed, replace all the valve lifters.
- Coat the valve lifter rollers with prelube, GM P/N United States 1052367, GM P/N Canada 992869, or equivalent.
Important: If reusing the valve lifters, install in their original location. The valve lifter guide retainer must contact all of the valve lifter guides. If the valve lifter guide retainer is bent, the valve lifter guide retainer must be replaced.
- Install the valve lifters.
- Install the valve lifter guides over the flats on the valve lifters, making sure the rollers of the valve lifters are properly aligned with the camshaft lobes.
- Install the valve lifter guide retainer.NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
- Install the valve lifter guide retainer bolts.
Tighten
Tighten the valve lifter guide retainer bolts to 25 N.m (18 lb ft).
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.