How often should spark plug wires be replaced?
Spark plug wires are a consumable item like oil in the engine, they should be changed on a frequent schedule that is determined by how often they run. A routine schedule of cleaning, inspecting and checking the resistance of the wires should be done as a routine maintenance program of the car. Some teams even keep a logbook of the resistance of when the wires were built to compare after running. Some of the most common problems can come for the actual wire crimps that can be resolved by re-crimping the terminals or replacing the terminal. The terminals are designed as a conductor crimp so the conductor does not have to be bent over which can fracture or damage the conductor making it read a higher resistance than normal. The resistance should be 40 to 50 ohms per foot once the measurement is noted that value should not change. The only other facture that can not be checked is the outside jacket, other than cleaning and a visual inspection looking for abrasion, cuts and pinholes, the ja
