2002 Lincoln LS change #5 coil but car is still shaking

2002 LINCOLN LS
62,000 MILES • 6 CYL • FWD • AUTOMATIC
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KINGFISH10
  • MEMBER
  • 1 POST
ok my car is saying # 5 misfire so I changed all sparks plugs, and also changed the # 5 igition coil. but it is still misfiring, what else could be
Mar 13, 2009 at 11:49 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
Compression and injector problem on that cylinder

Engine misfiring 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
Mar 13, 2009 at 12:18 PM
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