How to replace the LH Lash Adjuster on 2003 Cadillac DeVille?

Begin Lash Adjuster replacement by removing left valve rocker arms followed by Lash Adjuster removal from bores. Clean the lash adjusters then perform an inspection step before performing the actual installation work. Stroking a stationary hydraulic Lash Adjuster plunger in the lower pressure chamber demands proper oil presence. Put clean engine oil gm p/n 12378006 or equivalent into the stationary hydraulic Lash Adjuster (SHLA) component but exercise caution against damaging the pivot sphere area. The installation process begins with putting new lash adjusters into the bores followed by reinstalling the left valve rocker arms.

OEM 2003 Cadillac DeVille Lash Adjuster

Lash Adjuster Lifter

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2003 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 2003 Cadillac DeVille Submodels:
- Base, DHS, DTS, Protection Series | 8 Cyl 4.6 L GAS

2003 Cadillac DeVille Lash Adjuster

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2003 Cadillac DeVille Parts Questions & Experts Answers

Q: How to replace the LH Lash Adjuster on 2003 Cadillac DeVille?
A: Begin Lash Adjuster replacement by removing left valve rocker arms followed by Lash Adjuster removal from bores. Clean the lash adjusters then perform an inspection step before performing the actual installation work. Stroking a stationary hydraulic Lash Adjuster plunger in the lower pressure chamber demands proper oil presence. Put clean engine oil gm p/n 12378006 or equivalent into the stationary hydraulic Lash Adjuster (SHLA) component but exercise caution against damaging the pivot sphere area. The installation process begins with putting new lash adjusters into the bores followed by reinstalling the left valve rocker arms.