Misfire and/or Check Engine Light Due To Failed Ignition Coil on Cadillac Eldorado

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.

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Average mileage: 63,240 (51,220–73,500)
5 model years affected: 1995, 1996, 2000, 2001, more2002
6 people reported this problem
3 people shared problem details
Had to replace rear coil pack after getting PCM0300 misfire code and going into limp mode. Got part used w/ 1 year warranty for half cost of dealership. Replaced myself, took the opportunity to replace plugs & boots as well. Took about 45 mins including all plugs and boots for both sides.
Intermittent misfire caused by coil for cylinders 2 and 6 repaired this prolem.
Rough idle. Check engine lot on. Had prob fx and replaced one of the 4 ignition coils
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