Ram 1500, 2500, 3500, 2WD and 4WD, 2001-2005

Diagnosis & Testing


Component tests are limited to checks of the spark plugs and coils. Specialized analysis equipment is needed for more in-depth troubleshooting.

Do not run the engine with a coil disconnected. Do not attempt to ground a coil to the engine to check for spark. Sensitive components could be ruined or the extremely high voltage could cause serious injury or death.