RAM 2500 Truck 2WD V8-5.9L VIN Z (1997)
Distributor Cap: Testing and Inspection
Fig. 22 Cap Inspection - External - Typical (V6 Shown)
Fig. 23 Cap Inspection - Internal - Typical (V6 Shown)
Remove the distributor cap and wipe it clean with a dry lint free cloth.
Visually inspect the cap for cracks, carbon paths, broken towers or damaged rotor button.
Also check for white deposits on the inside (caused by condensation entering the cap through cracks).
Replace any cap that displays charred or eroded terminals.
NOTE: A small amount of erosion is expected from normal operation.
Examine the terminal ends for evidence of mechanical interference with the rotor tip.