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Ford Taurus 2005, rough idle


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prodrigsr
User

Nov 13, 2013, 4:51 PM

Post #1 of 4 (2355 views)
Ford Taurus 2005, rough idle Sign In

05 Ford Taurus , 3.0L , Vulcan motor. Here is the problem. When starting up cold the rpm rev up of course but after it gets down to about 800 rpm the car starts to idle very rough. Seems to get better after car warms up. Some times it takes a long while to run smooth. Ideas??


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Nov 13, 2013, 4:52 PM

Post #2 of 4 (2354 views)
Re: Ford Taurus 2005, rough idle Sign In

Have the computer scanned for codes and post the code numbers here.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



prodrigsr
User

Nov 15, 2013, 9:28 AM

Post #3 of 4 (2322 views)
Re: Ford Taurus 2005, rough idle Sign In

finally got codes. One question though.. Can these symptoms also be caused by a vacuum leak> Codes are p0303 and p0301


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Nov 15, 2013, 9:38 AM

Post #4 of 4 (2321 views)
Re: Ford Taurus 2005, rough idle Sign In

Those are indicating misfires in cylinders 1 and 3. Vacuum leak is not real likely with those.

Bad coils are more common.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



(This post was edited by Hammer Time on Nov 15, 2013, 9:40 AM)






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