I have a 2001 4.7L Durango. I think the Idle Air Control Motor may be out, from what I've read on here and other places. Difficulty restarting truck if shut off while still cold, truck tries to stall out on me the second my foot leaves the gas pedal unless the truck is warmed up, etc. It is not the TPS or the Crankshaft Position sensor. Both have been replaced within the last month.

Cheapest i can find the part is $77 on Amazon. My question is, would this part going bad affect the heater? My truck doesn't produce heat unless it's good and warmed up and I'm driving freeway speeds... and even then the air is lukewarm - warm at best. So... is my heater core out on top of everything else, or is this part of the problems due to the IAC Motor?

Also, does anyone have installation instructions that could help me?

I have spent $816 on this truck so far this year in repairs. I'm about to lose my mind.

 

the IAC will NOT affect the temperature of the heat, it sounds to me like you either have a clogged heater core or an air bubble in the system.