See also:

2011 Hyundai Sonata Hybrid review
In the world of hybrids, there are two schools of thought: You can buy a Toyota Prius — a hard-core, 50-mpg hybrid with funky styling and a utilitarian interior — or you can pay more and get less- ...

Engine Number
The engine number is stamped on the engine block as shown in the drawing. ...

Check Spark Plugs and Ignition System
Inspect your spark plugs 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. ...