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Guest Message by DevFuse

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Hill climbing misfire,engine bucking

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3 replies to this topic

#1 OFFLINE   Liteman



  • Ford Flex Members
  • 30 posts
  • Region:U.S. Great Lakes
  • Location:Marinette WI
  • Current Vehicle:2009 Ford Flex SEL

Posted 16 November 2014 - 11:17 PM

Hello everyone, I have a problem. When I am trying to climb up a hill, or a bridge the car starts buck or misfire. This 2009 Ford Flex SEL has E3 spark plugs and ACCEL coils. I don't know what to replace first. Only have 57500 miles on her. Any suggestions on what to replace? All feedback is welcome

#2 OFFLINE   Trustee


    New Flex Member

  • Ford Flex Members
  • 2 posts
  • Region:Decline
  • Location:georgia
  • Current Vehicle:ford flex 2009

Posted 08 April 2015 - 05:59 PM

Did you ever find a solution? I'm having similar issues

#3 OFFLINE   robertlane


    Flex Fan

  • Moderator
  • Pip
  • 199 posts
  • Region:U.S. Great Lakes
  • Location:Dearborn
  • Current Vehicle:Shelby Mustang

Posted 08 April 2015 - 09:29 PM

I wonder if it's a sensor issue?

#4 OFFLINE   GrySql


    New Flex Member

  • Ford Flex Members
  • 223 posts
  • Region:U.S. Pacific Coast
  • Location:SoCal
  • Current Vehicle:Fusion Hybrid

Posted 10 April 2015 - 07:27 AM

Did you ever find a solution? I'm having similar issues

How many miles are on your Flex?  What year and engine?  Does the Check Engine Light (CEL) come on?

Running a Vehicle Health Report can find minor problems, a Code Reader can spot Engine Codes.

Spark plugs, a fouled fuel injector or a failing COP (coil) can cause misfires.

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