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
Hyundai's redesigned Sonata sedan has exploded onto the market to become one
of the most popular cars available, period. It's the best example of how a
good-looking product at a competitive price ...
Engine oil and filter
The engine oil and filter should be changed at the intervals specified in the
maintenance schedule. If the car is being driven in severe conditions, more frequent
oil and filter changes are requir ...
Evaporative Emission Control (Including ORVR: Onboard Refueling Vapor Recovery)
System
The Evaporative Emission Control System is designed to prevent fuel vapors from
escaping into the atmosphere. (The ORVR system is designed to allow the vapors from
the fuel tank to be loaded into ...