Valve clearance
Hyundai Sonata / Sonata 2011 Owners Manual / Maintenance / Explanation of scheduled maintenance items / Valve clearance
Inspect excessive valve noise and/or engine vibration and adjust if necessary. An authorized HYUNDAI dealer should perform the operation.
See also:
Alarm Stage
The alarm will be activated if any of the following occurs while the car is parked
and the system is armed.
1) Any door, tail gate (3 Door) included, is opened without using the transmitter
or th ...
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Coolant
The coolant should be changed at the intervals specified in the maintenance schedule. ...


