Diagram of spark plug wire resistance testing with distributor c…

Spark Plug Wire Testing



For push-start TVI-IV ignition system diagnosis (~'84-93 F-series/Bronco), use the diagnositic procedure in Haynes Ch.5 (Sec.5 or 7, depending on edition):



For CCD TFI-IV ('93-96 F/Bronco), see this caption:



In addition to the tip of the rotor, the entire plastic interior of the cap should be coated with a thin film of silicone dielectric grease to prevent condensation from causing spark leak. Do not apply silicone to the rotor spring, the cap's carbon button, or the cap's metal terminals.

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Owner caption May 2012 · Photo 4391 of 5000