Car Problem Reports

Cadillac DeVille Misfire Due to Failed Ignition Coil

Cadillac DeVille Problem
43 Reports
Me Too

Model Years Affected: 2000, 2001, 2002, 2003, 2004, 2005

Average Mileage: 113,350 mi (40,000 mi - 216,000 mi)


An ignition coil may fail causing one of the cylinders to misfire. Each of the two banks of cylinders has its own coil assembly. If one ignition coil fails the coil assembly for the corresponding cylinder bank must be replaced.

  • Visitor, , 106,000 mi

    'Service engine soon' light is on. It states that 'Cylinder 8 misfire' is the problem. I'm hoping it's something simple like a failed ignition coil on that cylinder or a spark plug...

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  •  Rookie

    when i go to give it some gas car starts shaking like, it doesnt stall, it feels like a misfire but not sure.

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  • Visitor, , 145,000 mi

    Engine shaking occured during normal driving. Check engine light blinking constantly while driving.Replaced both ignition coils corrected the problem. Very costly.

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  • Visitor, , 118,000 mi

    Dead miss confirmed by OBD II on no 6 cyl. Replaced coil pac.

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  • Visitor, , 170,000 mi

    misfiring, poor acceleration, runs terrible! Changed coil pack, spark plugs, fixed & replaced o2 sensors and 2nd & 3rd cylinders...still no go!!! Trying fuel pump...not getting any codes!

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  • Visitor, , 111,000 mi

    replaced both coils

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  •  Rookie

    engine at different times starts to misfire runs roughand some time dies. poor accelerationi have replaced the o2senor on front and back exhaust manifolds and also the mass air flow sensor to no improvments.

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  • Visitor, , 116,000 mi

    had this problem replaced coils and everything was fixed coils are very expensive the labor doesn't cost much the part itself was close to $350 total job cost was $800. recommend replacing spark plug with this coil job

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  • Visitor, , 87,000 mi

    car runs ruogh check engin light on says misfirer on number three cylinder.also has crankshaft senser bad.

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  •  Enthusiast

    replaced front module. now i am told the rear needs to be replaced also

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