Hyundai Sonata: Fuel filter
A clogged filter can limit the speed at which the vehicle may be driven, damage the emission system and cause multiple issues such as hard starting. If an excessive amount of foreign matter accumulates in the fuel tank, the filter may require replacement more frequently.
After installing a new filter, run the engine for several minutes, and check for leaks at the connections. Fuel filters should be installed by an authorized HYUNDAI dealer.
Drive belts
Inspect all drive belts for evidence of cuts, cracks, excessive wear or oil saturation
and replace if necessary. Drive belts should be checked periodically for proper
tension and adjusted as neces ...
Fuel lines, fuel hoses and connections
Check the fuel lines, fuel hoses and connections for leakage and damage. Have
an authorized HYUNDAI dealer replace any damaged or leaking parts immediately. ...
See also:
Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of engine
coolant (antifreeze), and to ensure that the engine coolant
(antifreeze) will return to the radiator from the coolant
recovery bottle.
...
Steering gear box, linkage & boots/lower arm ball joint
With the vehicle stopped and engine off, check for excessive free-play in the
steering wheel. Check the linkage for bends or damage. Check the dust boots and
ball joints for deterioration, cracks, ...
Gasoline quality standards
●Automotive manufacturers in the U.S.A., Europe and Japan have developed
a specification for fuel quality called the World-Wide Fuel Charter
(WWFC), which is expected to be applied worldwide ...
