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Engine - Hydraulic Lash Adjuster Noises|Page 304 > < Camshaft, Engine|Specifications
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Lifter / Lash Adjuster: Technical Service Bulletins
Engine - Hydraulic Lash Adjuster Noises

SOURCE: Kia Technician Times

TITLE: HLA Noise

APPLIES TO: 

Sephia
Sportage

SERVICE TIP:

CONDITION

Some vehicles have experienced excessive HLA noise (clatter) at engine start-up.

CAUSE

Air becomes trapped inside the HLA (aeration) and causes excessive clatter. Prior to replacing any HLAs, perform the following de-aeration
procedure.

CORRECTIVE ACTION

1. Warm-up the engine to normal operating temperature.
2. Run the engine at the specified RPM's for the specified length of time.

Sephia: 4000 RPM for 5 minutes
Sportage: 3000 RPM for 10 minutes

3. Verify that HLA noise is no longer present.

Engine - Hydraulic Lash Adjuster Noises|Page 304 > < Camshaft, Engine|Specifications