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ruff idle

  1. S

    Ruff Idle on cold start. Almost Misfire. No codes

    2005 Sport Trac 4.0L has a ruff idle on a cold start up. It's almost sounding like a misfire. Engine also seems to idle too low after cold start. 400-500rpm and feels like its about to die. I can press on the gas a bit and it will get stuck at around 1000rpm for a min or 2, then it will idle...
  2. J

    New and Need Help

    Hi, my name is Jason I'm new on here and I'm looking for some help. I just recently got a 04 Mountaineer 4.6 it has 225,x.. miles on it has newer engine This thing runs great while driving but at idle it almost feels like it has a miss??? It also has a faint knock to it??? The trans makes a...
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