Understanding the appropriate procedure and diagnosis codes for a particular study question is an important part of analyzing Medicare data. These codes are very specific and can change from year to year as new codes are added and others are discontinued.
There is no wear-out factor in the coil itself other than thermal cycling and the damage it may cause. Boots and wires do age, resulting in reduced insulation value over time. The key to correct ignition system diagnosis is to understand the details of how the system you are working on really functions. PAGE:
This causes the backfiring conditions. This ignition coil symptom is a sign of the coilâs failure and an indication that the vehicle is probably getting further damage. Backfiring may cause severe damage to the vehicleâs exhaust system. When the backfiring happens often, the vehicle should be looked at by a mechanic.