2003 Chevy Malibu car problem

2003 CHEVROLET MALIBU
103,000 MILES • 6 CYL • FWD • AUTOMATIC
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CALIMEXI
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what causes the engine to shake, to barely accelerate,and to cause the exhaust to smell?
Feb 26, 2009 at 12:07 AM
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RASMATAZ
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Sounds like its misfirng

Misfires can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel.
Feb 26, 2009 at 3:28 AM