What Would Cause An Ac Clutch To Not Engage. The main problem is possibly due to a pressure switch or faulty relay. Seized throw out bearing.
A clutch that doesnt engage fully or slips under heavy load is the normal failure mode of a worn out friction disc of pressure plate that has lost its tension. If it engages and disengages it can be the clutch itself has gone bad the ac clutch will also disengage if there is not enough freon in the ac system will also engage and disengage if the pressure gets too high in the ac system. The AC compressor clutch is used to engage the power from the engine to the compressor.
What would cause a clutch to not engage.
If the clutch doesnt engage the problem could be a blown fuse an open in the wire to the clutch coil a bad clutch coil a poor ground a low pressure switch lockout or even a bad engine coolant temperature switch. Seized throw out bearing. If by jump stating the clutch you mean that you supplied battery voltage direct. To disengage the clutch a switch must be replaced.
