Originally Posted by clmoe5
I noticed when the ac is on and I am driving I hear a chirping noise every 8-10 seconds. If I am idiling with ac on I don't hear the chirping noise. If I turn ac off and continue to drive I don't hear the chirping noise either.
On some Fords, the AC compressor clutch will give a metallic chirp each time it cycles on. As you said, this is most noticeable when driving at light throttle above idle. It can be annoying but doesn't seem to hurt anything. Short of replacing it, I don't know of a proven cure.
2003 FX4 Level II, Supercharged 5.0L V8, Headers, Duals
BW4406 manual transfer case, Aussie Locker, Torsen L/S, 4.10's
Bilstein 7100 rezzies, Cadillac/Mustang rear discs, Duff traction bars
Keypad Entry, Lock LEDs, ABS switch, sway bar discos
Heated seats, Explorer EATC, Trip Computer and consoles
2003 XLT 2.3L M5OD-R1 reg cab beater, 2011 Taurus SEL, 2016 C-MAX Energi Plug-in Hybrid