HiCustomer welcome to Just Answer!.
Do you ever see a CHECK ENGINE lamp illumination while driving?
Have you had the engine scanned for codes by chance?
Did a low or dead battery just precede the onset of this problem?
Talk in a few,
Sounds good, j. If there's anything I have... it's time. Let's get it right.
Started first time this morning,no flare, dropped to normal idle ,temp above 40 degrees.
I DROVE LESS THAN A MILE AND ENGINE DIED ,FIRST TIME THIS HAPPENED ,DIDN'T HAVE WRENCH TO DISCONECT BATT TO SEE IF LAST SUGESTION MATTERED[IAC MOTOR RELEARN] CAR STARTED AFTER A FEW MINUTES AND RAN FINE.
That sounds like a different problem, j! I'm not liking the sound of that... what you've been dealing with so far has always been a "nuisance"-type stall, right? One where the engine will always restart, but won't hold an idle?
YES, ENGINE WOULD RESTART JUST NO IDLE, WHAT HAPPENED THIS MORNING WAS A FIRST,EVEN 8 MONTHS AGO WHEN THE RESTART PROBLEM OCCURED UNDER HOT RESTART[new batt.] SHE NEVER STALLED, ONCE RUNNING. FYI- WHEN NOT IDLEING, IF I RESTART IN NEUTRAL AND IMMEDIATLY DROP INTO DRIVE AND PULL AWAY PROBLEM SEEMS TO CLEAR UP INSTANTLY.
Did you happen to notice a NO BUS alert in the odometer while it was a no-start?
Do you have a CHECK ENGINE lamp illumination now since the stalling event?
It's way early to say you've got a PCM failure in the works, but it's not out of the question, j. If you have a 5.9 engine with the 56040147A# XXXXX a hot engine stall like what you'd seen isn't at all unusual. If it's the PCM, it's gonna do it again, so you might as well give it every opportunity while you're home and safe. Start the engine and let it idle with the A/C on for a half hour or so with the hood down. Let it get good and hot underhood and see what happens.
Most problems that cause a stall like what you had will leave a code behind and the CHECK ENGINE lamp would be on afterward. But if the PCM takes a short nap, it wakes up with no realization anything ever happened except that it's lost its internal memory... all adaptives and any stored codes will be lost.
So what I'd recommend at this point is to set a code of your own choosing to turn the light on, get the engine to stall and see if the light disappears after the engine wakes back up. It's like putting bait in a trap to see if it's still there after the door shuts.
As much as I hate to say it, your idle problem may be related to what you're seeing now. I see an awful lot of these PCMs with P0505 codes set, which turns out to be an internal IAC circuit failure.
Let me know what you find.