Driving tips
HLA (Hydraulic Lash Adjuster)
noise
The engine HLA's keep the gap between
the valve and cam at zero regardless of
the valve expansion.
Occasionally, you may hear a temporary
or continuous sound (clatter) from the
engine when starting or idling. This noise
will usually go away by following a few
simple steps:
CAUTION
Do not run the engine at more than
3000 rpm until the noise goes away.
Damage to the HLA's could occur.
5
10
If the temporary sound occurs when
starting a cold engine:
This is a normal condition. This sound
will disappear after the engine oil has
reached normal operating pressure.
If the sound occurs when starting the
engine after the engine has not been oper-
ated for more than 48 hours; or engine
has been cranked excessively:
This condition may be caused by oil
draining from the HLA's. This allows air to
enter the HLA causing insufficient lubri-
cating oil in the HLA. This will usually dis-
appear within 15 minutes with the engine
running at 2000~3000 rpm. If the sound
does not disappear, have the engine oil
pressure, engine lubrication system and
HLA's inspected by an Authorized Kia
Dealer.