M.R.E. wrote:
Tow truck driver checked the battery before he took it to dealer and said the battery was good.
Lol. By virtue of the fact that you said battery and not batteries, I now understand why you had it towed to a dealer.
However, to relate to your story, couple things that may help you or someone else who has no experience or ability diagnosing something like a dead battery, a battery can be dead as a door nail and still show 12V.
Example, yesterday one of our cars was dead. Kids argued over who left the key on. But regardless the battery was on life support apparently and may have not even been “left on”.
It was so short circuited that after a jump start to get it into the shop, it wouldn’t idle because the alternator couldn’t keep up with the shorter battery and provide enough juice to run the engine without revving it up a bit.
Yet after the jump start it died and re started a few times between the driveway and the shop.
4 hours later it still wouldn’t take a charge even though the charger showed almost complete.
This morning, battery showing 12.2V wouldn’t even “wake up” the car. No lights or anything on. (1999 model btw).
Battery mfg date was 9/11 though, so I think it did its job. Worked beautifully the last few months since I bought it. But the recent couple unseasonably hot days likely finished it off.
Swapped in one of the boat batteries. Problem solved.
Also for future reference. You can start your diesel with one good battery. In warm weather of course.