The role of the ignition coil is to multiply battery voltage into high voltage. Following Ohm’s law for the conversion of volts to amperes, oil-filled coils generally require 3 to 5 amperes of primary current to produce 20,000-30,000 volts of secondary current. Modern E-core and COP (coil-over-plug) ignitions require as much as 7 amperes of…

When servicing high-mileage engines, pay close attention to the condition of the sealing surfaces as this could affect the intake manifold gaskets.

With more than 3 million hybrids on the road, servicing hybrid ­vehicles and hybrid fluid maintenance is in your future.

More vehicles are being equipped with cartridge-style wheel bearings, a style that requires more labor to replace when compared to traditional bearings.

Fuel pump replacement comebacks can be costly and can hurt your reputation. Learn why and how to keep a clean fuel tank by following these steps.