Stalling on hot restart

[dinodiesel]

This is the third time it has happened. Initial morning start OK. Intermittently restarting after warmed up it starts and then stalls at the point the idle drops to below 400rpm. I haven't observed it normally idle that low. A bit of gas pedal on subsequent restarts keeps it going, eventually all is well. No check engine or ECU lights. Power normal. Any ideas?

2012 5.0; 87 octane Shell gas.

 

[Mark63021]

Third time on the same tank of gas? If so, I'd rule out gasoline before taking it in, personally.

 

[EXBMWGUY]

I'd first run some Chevron Techron Concentrate Plus fuel system cleaner through with a fresh tankful of gas from another station. Top-tier of course.

 

[dinodiesel]

No, not the same tank of gas. Maybe the same brand of gas. Third time since June 2012 when I purchased the car. I searched the list and found only some threads about throttle position sensor defective but the symptoms were not really the same (and not the same engine).
I am posting this to the list to see if anyone else has had this happen and what it was to point the dealer in the right direction; as everyone knows intermittent failures are hard and time consuming to diagnose.

 

[427435]

Do you have the stock air cleaner or have you installed a K&N type??

 

[dinodiesel]

Stock air filter.