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hard cold starting

  1. T

    2006 Ford Explorer Starts with starting fluid and runs fine won't start on it's own cold

    I have replaced the Throttle Body, fuel rail sensor, fuel pump regulator, MAF sensor, fuel filter, fuel pump relay in the fuse box, and the air filter. The engine cranks but will not start cold unless I use starting fluid. Once it starts it runs great, smooth, lots of power and no issues and I...
    • tech7000
    • Thread
    • 2006 2006 ford cold start problem coolant temperature sensor explorer fuel fuel delivery problems hard cold starting sensor replacement start up problems trouble starting
    • Replies: 14
    • Forum: Stock 2006 -2010 Explorers
  2. A

    Hard cold start squealing

    Hello I live in central New York where the weather has been in the single digits. My 99 explorer limited is having trouble starting in this weather and sometimes I have to jump start it, or turn the ign on and off a few times to get it started. Also when the heat is on it is not blowing bery hot...
  3. W

    1999 4.0 Sohc codes P1151 P1131 P0171 P0174

    Having very hard cold starts, but after the engine warms, it works great. Recently replaced plugs, MAF, fuel filter, cleaned throttle body. Anyone have any ideas? This is on a 1999 Explorer XLT, 4.0 SOHC, 90,000 miles
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