2002 Ford Taurus Engine Misfire

Tiny
CGHOFF
  • MEMBER
  • 2002 FORD TAURUS
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 171,000 MILES
I have an engine misfire that causes my check engine light to come on. A mechanic told me the code meant cylinder 1 misfire. I replaced the plugs and wires. Problem went away for a few days. Now it is back. The misfire is worse when the engine is cold. What is the most likely problem Coil, Ingnition Module, Etc?
Wednesday, January 23rd, 2008 AT 4:38 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
A misfire in a specific cylinder should lead you to check the spark plug, fuel injector and compression.

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.
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Thursday, January 24th, 2008 AT 7:01 AM

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