runs rich | Ford Explorer Forums - Serious Explorations

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runs rich

  1. B

    4.0 SOHC misses on Cyls 1 and 2 after replacing EGR&Fuel Press Sensor

    Good afternoon, Sorry about so many edits but I keep getting new info. See the end. My first post here but I've checked the forum out for many useful items over the years. 2005-4.0 SOHC with 150K but it's been well cared for as I've had it for 10+ years. It usually runs great with 22 mpg but...
  2. D

    Stock 93 Explorer runs as if it has a vacuum leak but

    I can't find a vacuum leak anywhere. It all started suddenly. The engine started running very rough. It would almost stall at traffic lights and I had to drive two-footed to keep it running to nurse it home. It is running extremely rich to the point where it blows black soot out of the...