Physical Wear: Over time, the rotor's contact surface can become worn out or damaged, leading to intermittent or poor electrical contact with the distributor cap terminals. This can result in an erratic spark or a complete lack of spark.
Electrical Resistance: As the rotor wears, it can develop increased electrical resistance, which hinders the flow of electricity. This reduced conductivity can lead to weak or missed spark signals at the spark plugs.
Carbon Buildup: Carbon deposits can accumulate on the rotor's contact surfaces or the distributor cap terminals. This can create an insulating barrier, preventing proper electrical conduction and causing spark issues.
Cracks or Damages: If the rotor develops cracks or other physical damages, it can further compromise its ability to distribute electrical power reliably.
As the rotor is a crucial part of the ignition system, a failure in its function will affect the entire ignition process, resulting in no spark and causing your 1994 Toyota to experience ignition problems and ultimately prevent the vehicle from starting.
