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2002 Ford Taurus rough, hesitating

Tiny
KTERRE
  • MEMBER
  • 2002 FORD TAURUS
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 108,000 MILES
I am having a problem with my 2002 Ford Taurus. All of a sudden it started riding very rough and hesitating when accelerating. If I am in park you don't notice it as much. If the car is in drive and you are trying to accelerating it doesn't want to go faster. Have to let up on the gas then give it a little gas. Is much worse if you turn on the airconditioner. Terrible when at a stop light or in stop and go traffic. Check engine light always on and the computer says it is a misfire in cylinder one. I have replaced all spark plugs and leads. Changed out the pvc gasket and fixed a collapsed vacuum line. Nothing works.
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Sunday, May 3rd, 2009 AT 4:26 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
P0301

Check the no.1 cyl. Compression and injector

Engine 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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Sunday, May 3rd, 2009 AT 5:15 PM

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