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Old 02-12-2013, 08:25 PM   #1
dckotwicki
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2010 Focus SEL hesitation

My 2010 Focus is hesitating / surging ever-so-slightly while at speed. Could it be the engine control module needs to be re-flashed???

I have changed the spark plugs and added fuel system cleaner ( Lucas ) with. O benefit.


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Old 02-12-2013, 08:42 PM   #2
jetrinka
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Any check engine light? What speeds does this happen at and at what frequency?
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Old 02-13-2013, 11:06 AM   #3
SESRob
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Try turning off the Traction Control and/or the overdrive (if auto trans)...see if that does anything. I know that my 2009 SES has this (I notice it most with air conditioning on and at about 1500 RPM, slight hill and 40 to 50 MPH).
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Old 02-14-2013, 08:54 PM   #4
dckotwicki
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No heck engine lights. Tried turning off the traction control with no luck. Will try the overdrive button but I don,t think that's it.

Anyone have the Engine Management Chip reprogrammed???
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