How does a mechanic determine when to replace the distributor ignition?

The mechanic needs to inspect the ignition coil’s primary and secondary ignition circuits to determine if the coil needs to be replaced. A mechanic can check both ignition circuits using a digital multimeter device.

A digital multimeter device for measuring resistance. Your mechanic may need to check your owner’s manual to find the normal resistance range for the ignition coil. If the primary or secondary resistance is outside this normal range, the coil needs to be replaced.

Diagnosing and replacing faulty ignition coils requires special tools and equipment. Even a small mistake can seriously damage the spark plugs or other parts of the engine. For this reason, it’s better to hire a mechanic to handle this task than try to do it yourself.

How much does it cost to replace the ignition coil?

A simple coil-type plug can cost a few hundred dollars, while a box-type system can run up to $1,000. The cost depends on the style of the coil and how difficult it is to access.

Is there any way to reduce maintenance costs?

Excessive wear and damage to ignition coils can be prevented by replacing spark plugs at manufacturer-specified intervals and addressing oil leaks in the event of minor oil leaks.

Unfortunately, even with a well-maintained vehicle, car ignition coil failure eventually becomes inevitable due to age. In this case, aftermarket ignition coils are usually available and a less expensive option, but in some cases they may not be as reliable as the original equipment on the vehicle.