Ok. My F-150 2004 Ford has a rough idle. It will die when i sometimes come to a stop. Took it to a dealer and they put on the computer and they found the throttle body actuator code in the system. Suspect the throttle body asm needs to be replaced. I was wondering if u can show me what the part looks like on the trottle body and how much it is?

What the dealer told you & what they do, is replace
the entire throttle body for no reason, other than they
can't diagnose their own products & they make money
off you

There are no computers used to diagnose or work on any
motor vehicles
A professional scan tool only sees what the PCM (vehicle
computer) sees & that is where all the problems start

A (TACM) throttle actuator control motor ,is part of the
throttle body & is not replaceable & the whole assy is over
$600.00 plus their unnecessary abuse of labor

All you need is spark plugs that do not have over 60,000
miles on them.
Spray the MAF Sensor with CRC MAF Cleaner & the main
problem you have is solved with spraying the sticking throttle
plate with CRC Throttle Body Cleaner, so it works & you do
not loose throttle position or % & get TACM Codes or
get wacked for a Grand by a dealer, which you should never
be at after the warrantee runs out

Also replace the (2) front O2 Sensors at 100,000 miles