Valve clearance
Inspect excessive valve noise and/or engine vibration and adjust if necessary. An authorized HYUNDAI dealer should perform the operation.
See also:
2011 Hyundai Sonata review
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To Keep Locks from Freezing
To keep the locks from freezing, squirt an approved de-icer fluid or glycerine
into the key opening. If a lock is covered with ice, squirt it with an approved
de-icing fluid to remove the ice. If ...
60,000 miles (96,000 km) or 48 months
❑ Inspect vacuum hose
❑ Inspect air conditioning refrigerant
❑ Inspect brake hoses and lines
❑ Inspect drive shafts and boots
❑ Inspect electronic throttle contr ...