An ignition coil is a vital component of a vehicle's ignition system. It is responsible for converting the low voltage from the battery into the high voltage needed to produce sparks at the spark ...
One to two times a year, call up your local HVAC professional to take a look at your all-too-important AC coils. Cleaning AC coils costs anywhere from $75 to $700, or an average of $125 per coil. Dirt ...