i was reading you’r reply to the guy concerning the ballast resister, and was wondering if you ever had this problem.when stopping for gas on a rainy day,and checking the oil opening the hood water would run down and some times splash on to the resister,causing it to fail . i and every one i knew with a mopar carried a spare in the glove box. some of my friends even fabricated covers to protect them from splash and still provide cooling . this was almost every time i opened the hood on my 1966 dodge pickup in the rain
Ballast resistors have been a Chrysler QC problem as far back as I can remember. Generally, the defect is typically where the terminal lugs are crimped around the actual resistor element – either a loose crimp, or corrosion. This can show up randomly (vibration), or due to thermal or moisture conditions.
I first discovered this on a friend’s ’64 273 ’Cuda, in 1964. The car quit on a dark road one night. My friend Howie left the ignition switch on and we opened the hood. You could actually see the arcing at one end of the resistor. We wiggled the connectors — and made it home.
With spares still only a few bucks, it isn’t a bad thing to keep in the glove box. You can plug the new one in and let it dangle (no tools required) to get you home.