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:
Checking and Changing the Engine Coolant
WARNING:
Do not remove the radiator cap when the engine is hot. When the engine is hot,
the engine coolant is under pressure and may erupt through the opening if the cap
is removed. You could be ...
Spark plugs
Make sure to install new spark plugs of the correct heat range. ...
Operation in Foreign Countries
If you are going to drive your Hyundai in another country, be sure to:
o Observe all regulations regarding registration and insurance.
o Determine that acceptable fuel is available. ...


