How to service and repair the valve guide seal, replace the valve stem oil seal, and valve spring on 2002 Chevrolet Avalanche 2500?

Remove rocker arms, position piston at BDC, rotate crankshaft until valves close, remove spark plug. Install Spark Plug Port Adapter, apply compressed air. Tap spring cap, fit Valve Spring Compressor, compress spring, extract keys, cap and spring. Lubricate components, install new seal with Installer, reinstall spring, keys, plug, rocker arms, pushrods, then release air.

OEM 2002 Chevrolet Avalanche 2500 Valve Stem Oil Seal

Engine Valve Seal

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2002 Chevrolet Avalanche 2500 Valve Seals Part Number: 12555601
$8.40 MSRP: $13.15
You Save: $4.75 (37%)
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Product Specifications
- Other Name: Seal-Valve Stem Oil; Valve Stem Seal; Seal, Engine Valve
- Item Weight: 0.40 Pounds
- Item Dimensions: 2.7 x 2.0 x 0.7 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12555601
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2002 Chevrolet Avalanche 2500 Submodels:
- Base, LS, LT | 8 Cyl 8.1 L GAS

2002 Chevrolet Avalanche 2500 Valve Stem Oil Seal

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2002 Chevrolet Avalanche 2500 Valve Stem Oil Seal Parts and Q&A

Q: How to service and repair the valve guide seal, replace the valve stem oil seal, and valve spring on 2002 Chevrolet Avalanche 2500?
A: Remove rocker arms, position piston at BDC, rotate crankshaft until valves close, remove spark plug. Install Spark Plug Port Adapter, apply compressed air. Tap spring cap, fit Valve Spring Compressor, compress spring, extract keys, cap and spring. Lubricate components, install new seal with Installer, reinstall spring, keys, plug, rocker arms, pushrods, then release air.