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Shuddering

Tiny
ADAM.STUDEBAKER
  • MEMBER
  • 2002 FORD F-150
  • 6 CYL
  • 2WD
  • AUTOMATIC
I just put a new torque converter in my2002 f150 2wd v6 with r70 trans. I also had the tranni rebuilt. It ran great for a few hundred miles but now the engine shudders and chugs when I accelerate from a stop. Once im moving it runs fine and only does this in gear, not in park or neutral I know its not the cats cause I pulled the o2 sensors and it still did it
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Thursday, February 17th, 2011 AT 9:40 PM

5 Replies

Tiny
BILLYMAC
  • MECHANIC
  • 2,204 POSTS
I would suspect a bad coil or wire you need to pin this problem down to one cylinder. And go from there.
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Friday, February 18th, 2011 AT 2:26 AM
Tiny
ADAM.STUDEBAKER
  • MEMBER
  • 5 POSTS
I was thinking this but im not getting a mifire code. Ill test the coil and wires though.
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Friday, February 18th, 2011 AT 6:24 PM
Tiny
BILLYMAC
  • MECHANIC
  • 2,204 POSTS
Ok if you need us we are here to help
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Friday, February 18th, 2011 AT 10:45 PM
Tiny
ADAM.STUDEBAKER
  • MEMBER
  • 5 POSTS
Coil primary and secondary resistances tested well as well as wires, spark plugs are a little worse for wear, will replace and see.
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Saturday, February 19th, 2011 AT 5:13 AM
Tiny
BILLYMAC
  • MECHANIC
  • 2,204 POSTS
Well let me know what you find we are always happy to try and help
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Tuesday, February 22nd, 2011 AT 12:24 AM

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