STOP BLAMING YOUR IAC VALVE! There could be other factors at play here (FOXBODY)
17:28
FACTORY FRESH / FOXBODY BASE IDLE RESET 2.0 / FIX THAT CRAPPY IDLE!
16:23
Ford Idle Air Control (IAC) valve test (how to adjust minimum idle speed)
12:54
Your Foxbody Has A Dirty Little Secret It's Been Hiding From You!
12:31
Engine Revving Up and Down at Idle FIXED
14:55
Here's the TWO SENSORS YOU NEED TO REPLACE FOR BETTER IDLE !!
16:35
1987 Foxbody Mustang | Idling issues Part 3 of 3
12:41
QUICKLY find FOXBODY issues using this simple approach
6:14