Check the following items.........
1. Freon levels.
2. Electrical harnesses for the a/c system.
3. Clutch air gap.
4. Pressure switches.....
trying to replace the ac clutch on my f350 6.0 and the bolt up front seems to be a special one any sugestions
low freon
Turn on ac and watch clutch on front of ac compressor. If clutch doesn't engage then AC relay is bad. Or you can follow the schematic on the side of the relay and use a volt meter to test it.
You could have air in the lines
The a/c clutch will not engage and the compressor will not come on.............
Most Likely Low With Freon.
check fuse or ac relay in under hood fuse box.. if out of coolant ac clutch will not engage,this is a safety feature!!
The clutch receives it's signal to engage from a pressure switch in the system. If there is insufficient refrigerant in the system the pressure switch will not close resulting in no power at the compressor clutch to make it engage.
It is a hydrolic clutch does not need adjusting
The 2003 Ford F3 50 air conditioning clutch relay switch can be found on the firewall in the engine compartment. The air conditioning clutch relay switch will be on the passenger side of the firewall.
First, the clutch won't engage if the refrigerant level is low. Start there. Next, check the sensor at the receiver/dryer.
You should be able to hear it engage-there is a clutch. If not, check the hot wire when someone turns on with a test light. If it has juice & does not engage, you may have a problem.