2003 Dodge Durango, 4.7, 30,000 miles.

strange issues that keeps recurring, after you drive the vehicle and it gets warmed up.

When you shut off the engine and it sits for a little while, 3 minutes to up to 30 minutes, vehicle starts up fine, after about 10 seconds running, in drive or in park, there is no throttle response, engine has no power and motor is stumbling. I can put it in neutral and after a few seconds it runs fine, after that you can drive it with no issues, fuel mileage is good, changed spark plus and air cleaner. I cleaned the MAP sensor. There are no codes. I checked for vacuum leaks no observed. no smoke from tail pipes.

It does not happen on initial start up or when the vehicle cools down sufficiently.

Any thoughts would be greatly appreciated.