Chrysler Full-Size Vans 1967-1988 Repair Guide

Spark Plug Wires

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See Figures 1, 2 and 3

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Fig. Fig. 1: Checking individual plug wire resistance with a digital ohmmeter



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Fig. Fig. 2: Before removing any wires from the distributor cap, label them to avoid mixing up the firing order



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Fig. Fig. 3: After removing the distributor cap, the rotor easily pulls off of the shaft

CHECKING & REPLACING SPARK PLUG CABLES



Visually inspect the spark plug cables for burns, cuts, or breaks in the insulation. Check the spark plug boots and the nipples on the distributor cap and coil. Replace any damaged wiring. If no physical damage is obvious, the wires can be checked with an ohmmeter for excessive resistance.

When installing a new set of spark plug cables, replace the cables on at a time so there will be no mixup. Start by replacing the longest cable first. Install the boot firmly over the spark plug. Route the wire exactly the same as the original. Insert the nipple firmly into the tower on the distributor cap. Repeat the process for each cable.

 
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