How to replace the LH Lash Adjuster on 2005 Cadillac DeVille?

The process starts with removing left valve rocker arms along with stationary hydraulic lash adjusters (LAs) from bores then performing cleaning and inspection of lash adjusters. Before installing the la plunger avoid both stroking and cycling procedures when the lower pressure chamber contains no oil. Exactly fill the la with clean engine oil gm p/n 12378006 or equivalent while avoiding any contact that could scratch the pivot sphere area of the la. Place new la units into their bores before you reinstall the left valve rocker arms.

OEM 2005 Cadillac DeVille Lash Adjuster

Lash Adjuster Lifter

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2005 Cadillac DeVille Valve Lifters, Green Line
Part Number: 12686787
$14.06 MSRP: $23.17
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Product Specifications
- Other Name: Adjuster Assembly-Hydraulic Valve Lash; Filler Cap O-Ring; Adjuster, Engine Valve Lifter; Adjuster, Engine Valve
- Replaces: 12572638, 24100005
- Condition: New
- SKU: 12686787
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following 2005 Cadillac DeVille Submodels:
- Base, DHS, DTS, Protection Series | 8 Cyl 4.6 L GAS

2005 Cadillac DeVille Lash Adjuster

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2005 Cadillac DeVille Parts Questions & Experts Answers

Q: How to replace the LH Lash Adjuster on 2005 Cadillac DeVille?
A: The process starts with removing left valve rocker arms along with stationary hydraulic lash adjusters (LAs) from bores then performing cleaning and inspection of lash adjusters. Before installing the la plunger avoid both stroking and cycling procedures when the lower pressure chamber contains no oil. Exactly fill the la with clean engine oil gm p/n 12378006 or equivalent while avoiding any contact that could scratch the pivot sphere area of the la. Place new la units into their bores before you reinstall the left valve rocker arms.