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rough running

  1. Hesitation/jerking at steady speed

    5.0L Tech
    I have an '87 5.0 with f-cam and gt40p heads, gt40 intake. Just finished it up last weekend. It runs like a champ while accelerating but at holding a steady speed or very light acceleration it jerks and misfires... I har replaced all vacuum lines and have no leaks, new plugs and wires, timing is...
  2. 67 Coupe 289 hesitating and sputtering

    Classic Tech
    Hi all. Need help diagnosing a problem. I'm in the process of fixing up my 67 Coupe that had been sitting for quite a few years in storage. I've already rebuilt the entire fuel system because the old one was rusted so new carb, lines and tank. I've made everything else road worthy but now I'm...
  3. 1966 Mustang 289 4bbl running very rough

    Classic Tech
    Hello, I had the water pump blow (seriously, shoved the fan into the radiator). Got that fixed, but since the incident the engine is running very rough. Idles fine, but sounds like misfiring or the timing is off. Also, hearing some clicking. Could this all be a timing issue? (Note - I'm not...
  4. Mustang sputtering. NEED HELP!

    4.6L Tech
    My 1999 Ford Mustang GT has been experiencing some issues the past month. When I turned the AC or HEAT on, the car would sputter a little bit and every once in awhile when I would drive on the highway and pass 50mph it would jerk a little bit but those only happened once in awhile but yesterday...
  5. 1999 mustang 3.8 No Power on acceleration, anyone know what this part is?

    V6 Tech
    1999 mustang 3.8 No power, hesitating, sputtering and backfiring when accelerating. It has no power, it's hesitating, sputtering, popping and backfiring when accelerating. Runs a little rough at idle, but revs up with only a second's hessitation, until it's under load, then it just bogs right...
  6. 00' 3.8l NEED HELP!

    V6 Tech
    Hey, I have a 00' 3.8l Manual that has a cut in the exhaust just after the cat on the passenger side. I swapped my engine back in march and it has run great since then, All I had was a code for insufficient EGR Flow. But all of the sudden when I take off it starts going really rough and groggy...
  7. 1995 Mustang valve Removal?

    Hey everyone. I have a 1995 5.0L mustang that has been my baby for about a year now. I was teaching my sister how to drive it (manual) and now it's wanting to die and the engine light is on. It goes off then starts to retard and surge betwee 350 and 1000 rpm. I decided that maybe i needed to...
  8. 1987 Mustang misfires need help

    2.3L Tech
    Hi my name is ken steele. I recently bought an 87 Mustang LX 2.3L from a scrap meatal dealer.After bringing it home I got to work getting it running again.It needed a fuel pump and tank badly so I replaced the tank and pump as well as the fuel filter.When I took the car for a test drive It...