2000 Crown Vic Idle/Stall problem
Occasionally, when I start my Crown Vic, it won't idle. I can drive it while holding the throttle partly open at stops, but it will stall if I completely let off of the accelerator. Eventually, it heats up and runs fine.
I've also noticed that it seems to hesitate or miss at part throttle as in trying to maintain a 30 MPH (or slower) speed.
Could the IAC valve be causing this and, if so, will this eventually set a trouble code in the computer?