robtwo

I've got an '11 250AWD, 48K on the clock CPO purchase. Only had it for a month.

It's been pretty hot around here and I've noticed randomly the car starts up with a less than smooth idle. This ONLY happens if I've been driving the car, stop and restart it about 10-15 minutes later. A quick on/off/on does not produce any problems.

Outside temps are 80f+

No CEL has appeared so I figure a dealer visit is worthless. Am I correct in assume the intake temps are just so high the ECU has trouble calibrating? I'd gather intake temps are approaching 150-180 degrees based on my past experience with modifying/tuning cars, though I'm not logging anything on this stock car. Of course this goes away quickly.

My only other thought is this is carbon build up.

Gville350

iTrader: (10)

The car should not have any issues started back up when warm/hot. Do you have a healthy battery and good cables going to it?

DryEye

You could try disconnecting the battery for 10 minutes to reset the ECU.

robtwo

Yes, all stock.