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rough idle

  1. What is This?
    My 1987 mustang gt will loose power like its just loosing spark and die tac drops to zero car jerks and its dead have to wait a minute or two to start it back up but sometimes it will just hiccup like the tac will drop to zero then go back up to what it was at and do that a few times and be fine...
  2. General Mustang Tech
    I bought a 2001 mustang and it needed a new fuel pump. After I got that replaced, it ran well. One day I started it and it ran for a while (till it warmed up) then started to stumble and then shortly after it died. Over time it took shorter and shorter times for it to stumble and die. I've...
  3. 5.0/5.8 Engine Tech
    Hello. I have a problem that nobody can seem to solve. I’m hoping maybe someone here might have some info. I’ve got a 68 mustang - currently it has a carbureted 5.0 in it. I have low vacuum, it fluctuates between 13 and 15 at idle, and idles poorly. Last year I set out to fix it, this is what...
  4. 5.0/5.8 Engine Tech
    Scanned all the forums and hopefully posting in the right place. I recently had my '91 GT in the shop to have an exhaust leak at the header gasket taken care of as well as have the smog and EGR deleted because the smog system had a leak in it. Car ran pretty good aside from the exhaust leak...
  5. 94/95 Tech
    Well i bought the car not running but now that i have it running it has a misfire. New plugs, new plug wires, new dizzy, new wiring harness, new eec, i tested the coil it seems to be good, the tfi is good tested it at advanced, i think i've found all the vacuum leaks, i set the tps voltage...
  6. 94/95 Tech
    So heres the deal, I had a rough idle and sometimes the car just would not drop in RPMs after inbetween shifts or when i would push in the clutch right away. I have literally replaced everything in the ignition and fuel system on this car hunting down several problems (some not related here.)...
  7. GT & SOHC
    Ok I need your help guys..i've done everything i've known to do. So here goes: my 95 Mustang is completely stock except for a cold air intake system and I had the two catalytic converters furthest from the engine removed to make the car louder and that is it. Now heres the problem-my car would...
  8. 94/95 Tech
    I have an aftermarket radiator fan that is wired up completely separate from anything in the car. The power runs directly from the main feed on the fuse box (where the battery wire connects to it) to the relays that came with the switch kit of the fan, It has a manual switch to turn it on and...
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