RAM 1500 Truck 4WD V8-5.9L VIN Z (2002)
Distributor Cap: Testing and Inspection
Fig.27 Cap Inspection - External - Typical
Fig.28 Cap Inspection - Internal - Typical
DIAGNOSIS AND TESTING - DISTRIBUTOR
1. Remove the distributor cap and wipe it clean with a dry lint free cloth.
2. 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).
3. Replace any cap that displays charred or eroded terminals. The machined surface of a terminal end (faces toward rotor) will indicate some
evidence of erosion from normal operation.
4. Examine the terminal ends for evidence of mechanical interference with the rotor tip.