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cylinder missfire

  1. F

    Engine Knock/Rattle - 2020 Explorer ST

    I purchased a 2020 Explorer ST with about 43k Miles last week. Its a CPO lease return. I drove it for 3 days maybe a little over 100 miles total. On the 4th day while driving on highway the engine started to make a knocking noise. I pulled off the highway to find a parking lot and noticed the...
  2. J

    Cylinder Misfire

    My check engine light on my 2000 Explorer (249,000 miles) is on and the code reads #6 cylinder misfire. when I first got this I replaced my plugs and wires. When it came on again I replaced my coil. I am getting good spark from the coil into that wire, but the light is on again and it does...
  3. J

    Missfire Cylinder #1 (intermitent)

    Hi all, Yesterday when driving back home, I noticed my Explorer 2002 started failing, tipical cylinder failure but it also make a noisy "clicks" like a piece of metal hiting anotherone. I just went to Autozone and they confirm the failure: Cylinder 1 Misfire by using the ODB-2. Since this...
  4. G

    Spec Check on Ignition Module

    My daughter's 1996 4X4 4.0 threw 0303 and 0305 codes. Checking this and that, I came to the ignition module. The book I have says the secondary resistance should be between 9K and 11K. The reading I get for all three coil pairs is more like 15.8 ohms. Still get a spark well over 30KV...
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