Hyundai Sonata: Spark plugs
Make sure to install new spark plugs of the correct heat range.
Air cleaner filter
A Genuine HYUNDAI air cleaner filter is recommended when the filter is replaced. ...Valve clearance
Inspect excessive valve noise and/or engine vibration and adjust if necessary. An authorized HYUNDAI dealer should perform the operation. ...See also:
Engine number
The engine number is stamped on theengine block near the gearbox on thefront left-hand side facing the radiator. ...
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