Worn motor mounts can cause the motor to rise during acceleration, causing a clunking noise and possibly damaging the AC hoses. Damage to the AC hoses can cause a loss refrigerant resulting in no cold air from the AC. The motor mount will need to be replaced prior to repairing the damaged hose or the problem will continue.
Car Problem Reports
Mercury Sable Worn Motor Mounts Can Damage AC Hoses
Mercury Sable Problem
Visitor, 1993 Mercury Sable, 162,000 mi
I have Worn Motor Mounts. Was told I need A/C compressor fixed. Not sure if the worn motor mount is the cause but it might be.