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misfire
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  1. Ford F-100, F-150, F-250, F-350
    04 Expedition, 5.4l 2v. Engine misses and shutters when under load, when in neutral it revs fine. Throws a code for cylinder misfire, but not always the same cylinder. Changed all the plugs, while doing that I noticed the EGR valve had a bad line on it so I replaced it as well. Still have the...
  2. 2011 - 2014 Mustang GT and Boss 302
    About a year ago after installing CAI and sct strategy tune, i got the #8 failure code. car kept going into limp mode every few minutes. I was lucky and replaced the cylinder and other parts on warranty and it wasnt voided.So now i've been running the CAI with a tune from a reputable company...
  3. 1996 - 2004 Mustang GT
    My 04 gt has been misfiring under load and at cruise above 2500 rpm. Replaced coils and plugs (.054) replaced fuel pump (injectors and rails are in excellent shape but fuel pres was low side) the car spent 2 weeks in the shop the best results came after clearing the computers flash memory then...
  4. Announcements
    I have an 04gt that is misfiring in random cylinders at 2500 rpm cruise in 4th. Tried everything, new plugs @.054, new coils, fuel rail/ injectors check good, newfuel pump. I took it to the shop they've had the car two weeks and still are as clueless as i am. i am considering buying a flash...
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