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limp mode

  1. High fuel rail pressure and limp mode

    6.4L Problems Forum
    I recently ministered my fuel rail pressure on FORscan to try and figure out why I kept going into limp mode. I keep popping p0088 in the PCM so I cleared codes to see my actual fuel rail pressure. I ran the desired side by side with the actual and found they ran mostly hand in hand with few...
  2. Truck goes into limp mode at 35-45 mph. Help!

    94-98 7.3L Problem Forum
    Hello, I have a 1996 f250 7.3 with a zf5. I just recently got running. Took it down the highway for the first time last night. The truck has a efuel system I made, runs at about 65 psi. New dark blue cps. New fuel selector valve (Fsv2a) It's cold up here, maybe 20 degrees, I'm running 10w-30...
  3. 2009 F-250 6.4 Going into limp mode

    6.4L Problems Forum
    Hi All, I'm very new to the world of diesel. Last week I purchased a 2009 F-250 6.4L pickup. It has 155,xxx miles on it. There is no tuner or modifications that I can see. It appears to be all stock. We made the purchase from a small dealer about 200 miles away. On the way home after driving...
  4. Truck runs, but no power?

    6.0 Motor problems
    06 f250 6.0 and i have been dealing with fuel gelling issues all winter long, i have replaced filter after filter, but now my truck has no power while driving. It idles fine, and drives fine but once i crack half throttle or WOT, nothing happens. It will stay around 2500rpms and it feels almost...
  5. Reduced Power Wrench, Code P252f. ?????

    6.4 Motor Problems
    My 2008 F550 with 109k total miles has a replacement motor, turbos, and injectors all installed by Ford. It only has 5K miles on it but has went into reduced power mode 5 times since September 2013. It runs perfectly 99%of the time but keeps going into limp mode and showing code P252F, engine...
  6. 2004 F250 in limp mode

    6.0L Problems Forum
    From what I've seen on other threads I am assuming my truck is in limp mode but I want a fresh opinion. When I was driving all the sudden the truck was having a really hard time and wouldn't go over 50, but I was a ways from home and long story short, now the truck is sitting at a friend's shop...
  7. Won't get past 15mph-cold weather

    Tranny 911
    Guys, I'm new here and just bought my first 7.3 after the typical 6.0 nightmare that lasted a year and a half. I am happy with the truck so far, but today after warming up for 15 minutes (it was 16 degrees out) I took it 2 miles into town and my trans wouldn't get me past 15mph on the way home...
  8. Limp Home Mode

    6.0 Motor problems
    I have an 06 F250. The wrench light comes on when I go full throttle. Even when in neutral. If I push the pedal to the floor the light comes on. I climbed a steep hill without pushing the pedal to the floor but got it to 3000 rpm and 25 psi of boost and no light. The truck seems to run fine with...