2003 Dodge Ram 2500, 5.7L Hemi.
Two weeks ago truck would not start. All electrical dead. Not even the
key fob worked. (Was a bitch as the wife and boy were picking me up
from a 3-day stay in the hospital. Had to fold my 6'5" frame with a
broken leg into her little skateboard Volkswagen for the 50 mile trip
home. Not fun.)
Truck would start when jumped from another vehicle, but the battery
would not hold a charge. restarting was hit & miss.
Towed it to my mechanic, who made the following tests and repairs:
Check charging system 14.29 regulator volts, diode pattern is good, 124
peak amps, battery test good and recharged. Let sit for a few days,
retested charging system, battery failed test. Recommend replacing
So I authorized a new battery even though the old one was less than a
year old (sometimes you get a bad one). Truck started fine at first.
A few days later I had the same problem. No electric at all. Truck
would not start. Same symptoms. Would start when jumped but could not
restart after jump disconnect.
Towed it back to my mechanic yesterday.
Clearly it's not the battery. It's something else. A short in the
charging system? Bad alternator?
Can anything else be causing this problem?
FWIW, my mechanic is a good one. Worked with him for years and he's
never done me wrong. But I feel he should have a better handle on this
problem than what he's done so far.