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miss fire

  1. V6 Tech
    The reason I replaced my valve cover gaskets was because my oil was leaking into my spark plug well and it caused my car to have a really hard idle and misfire. After switching the gaskets, sparkplugs, and wires the leak stopped and my car has been driving better than ever. I'm not responsible...
  2. 5.0L Tech
    Ok sort if a long story my car would not start one day after work, it was fine on the way to work. Anyhow after figuring out the tfi controller had gone bad I replaced it and the car started up just fine ran great... For one day, then I started getting this rondom miss while idle or driving it...
  3. 5.0L Tech
    When i pull the wire off cap for No. 1there is no change in the motor. i have rebuilt the 302 engine by; re-ring, bearings, valve seats, as well as many other new parts. The cap,rotor,and wires are new. This is the initial time after the rebuild and it won't run right.symptoms are missing...
  4. 2.3L Tech
    i have a 1989 mustang lx 2.3 auto. has a dead engine miss at idle until around 2500 rpm. number 2 is dead (removed plug wire and had not change). i have installed # 2 injector, plugs, wires, cap, rotor. i have good spark at the plug, has power at the injector and a pulsating ground signal...
  5. 5.0L Tech
    Ive been having some problems with my '93 LX 5.0L. It idles good but when i drive it after a while (mostly at higher rpms) it seems to miss. timing is correct. Does anyone know what might be the problem?
  6. 4.6L Tech
    Hey everyone, About a week and a half ago my service engine light came on. I took it in and got it looked at and the spark plugs replaced... The codes said that it a miss-fire issue so it came then today about 4 days after I got it wiped off the computer the light stated flashing for about 30...
  7. 5.0L Tech
    My '86 gt is running funny. it wont idle right it bounces form 200rms to 1000rpms n stalls. when i go to take off in first grear its very slugish like its totally missfiring. here is the catch when i hit 3000rpms it takes off like crazy, all the power is there. its like i hit nos lol. i dont...
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