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  1. C

    P0174 / P0171 error codes

    Thanks! I will.
  2. C

    P0174 / P0171 error codes

    My mother has a 1999 Explorer Sport with the 4.0 and for the last 10 months or so it has running terribly when cold - usually only until the end of the block (first 30 seconds or so) and then it smooths out and runs fine. With the recent colder weather the problem seems worse - such a rough...
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