See also:

Fuel Filter
A clogged filter can limit the speed at which the vehicle may be driven, damage the emission system and cause hard starting. If an excessive amount of foreign matter accumulates in the fuel tank, ...

2011 Hyundai Elantra review
Either I'm getting finicky in my old age or Michigan's never-ending winter is getting to me. Even though the 2011 Hyundai Elantra looked cool and handled well over hard-packed snow-covered roads, ...

Check spark plugs and ignition system
Inspect your spark plugs as described in section 7 and replace them if necessary. Also check all ignition wiring and components to be sure they are not cracked, worn or damaged in any way. ...