My truck recently has been running weird. When I first start my truck when it's completly cool it runs fine. After about five minutes it starts to run rough and buck. It does idle high at first when I start it. Could this be the coolant temp sensor? The iac and tps are new.

 

Well when my ECT sensor was bad it made my truck
have trouble starting after warmed up.

I don't know about making it run rough when warm though.
Maybe the Air Temp Sensor.

 

Pull the codes so you know if there is a sensor problem or not, don't just blindly guess.