I am: Bob .
Join Date: Nov 2004
Vehicle: 2003 Ford Ranger
Drive Type: 4x4
Total Props: 19
A/C cycling frequency is regulated by the low pressure cycling switch. Generally speaking, R134A systems like yours do tend to cycle more frequently than the old R12 systems. If the cycling is a lot more frequent than you remember on this vehicle, have the charge rechecked. It may be underfilled.
AC compressor operation allowed:
AC compressor operation not allowed:
As shown above, A/C compressor logic is dictated by the mode switch position, not by the temperature selected on the dial. Beyond that, compressor clutch engagement can be disallowed by the Low Pressure Cycling switch, High Pressure Safety Switch or the PCM when in power mode.
2003 FX4 Level II, Supercharged 5.0L V8, Headers,Duals 4R70W auto, BW4406 manual T/C
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
5.0L V8 swap: Click
2003 XLT 2.3L M5OD-R1 reg cab beater, 2011 Taurus SEL, 2016 C-MAX Energi Plug-in Hybrid