coil pack

  1. D

    How to test for a bad coil pack - 4.6 liter motor

    1999 Mustang GT w/ 4.6 motor. I rinsed the dust off the motor on Saturday with a gardren hose, not a pressure washer. The motor now runs with a misfire, even after drying out for a few days. I suspect I messed up a coil pack. How do I test my theory? Is it safe to unplug each coil pack one by...
  2. L

    Crank but no start in humid/rainy weather

    2003 V6 Mustang. In dry weather, the car just starts fine. In humid weather, especially after it rains; it doesn't start, but still cranks. I checked the ignition on one of the spark plug wires with an ignition tester and the spark is there. I also tested the fuel pressure at the schraeder...
  3. C

    Engine misfire during use

    Hey, recently I bought an 04 mustang with the 3.9 v6. It had been parked for about two years so it needed quite a bit of work done to it. I won't talk much about the PCM issue that I had, but once the car started I ended up running into an issue that pretty much made it undrivable. When I would...
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