Chrysler Repair: 2000 Concorde 3.2L, compression test, fuel injector


Question
After "Check Engine" light appeared, had Autozone diagnosed the code.  3 options, bad #5 spark plug / bad wiring / fuel injector problem. With 11 year old car (Original owner, bought plugs with the thinking of replacement. Noticed ignition coils for each plug, should I replace all 6 coils?  Any other options I can take? Thanks for the help, rob

Answer
At this point I would not needlessly replace all the coils. If replacing the plugs cures your misfire, close the hood and call it a day. If the misfire comes back swap the coil on the misfiring cylinder with one that is not. If the misfire move to the cylinder you swapped coils with you can safely assume that the coil is defective and needs replacement. If the misfire is still on the original cylinder then more testing needs to be done. I would start with doing a compression test.