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2004 Cadillac CTS Question: engine light on



dolphin, 3.6L V6, Corpus Christi, TX, October 16, 2009, 21:10

accoring to the computer it showed that the problem was coil,injectors **both have been changed and new spark plugs have been changed also and still have the same problem

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  • Answer #1

    October 16, 2009, 21:21

    Here are some of the problems that can cause a cylinder misfire:

    Worn out Spark Plugs Ignition Wires, Coil(s), Distributor Cap and Rotor (when applicable)
    Incorrect Ignition Timing
    Vacuum Leak(s)
    Low or Weak Fuel Pressure
    Improperly functioning EGR System
    Defective Mass Air Flow Sensor
    Defective Crankshaft and/or Camshaft Sensor
    Defective Throttle Position Sensor
    Mechanical Engine Problems i.e Low Compression, Leaking Head Gasket(s) or Valve Problems

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