Spark plugs have a pretty predictable life cycle, but ignition coils can be harder to track. Here's how to tell if an ignition coil is on its way out.

Its ignition control module is failing. Since 2014 I have replaced it three times. Can you please tell why my control module keeps failing? It stops working without warning.

The engine control module, or ECM, controls plenty of functions during routine driving, so any issues with that part could cause severe problems.

Follow along as we install this new MSD Digital-6 ignition control module on our off road truck! See all the details and every thing that comes with this MSD unit in this months issue of Off-Road ...

The reason: The placement of the thick film ignition (TFI) module placed too close to the engine block, causing the heat-sensitive module to suddenly fail when it gets above 257 degrees.