Jeep 1987 Wrangler Workshop Manual page 1022

HEATING AND AIR CONDITIONING
AIR CONDITIONING SYSTEM
DIAGNOSIS CHART A
INSUFFICIENT OR
NO COOLED AIR
No
Yes
Yes
Check the air
distribution doors;
ensure that there are
no obstructions in
the vent channels
Test the drive
belt tension
Replace
the fuse
No
r
Apply 12V directly to
the blower motor
Yes
Replace the
blower motor
f
Replace the clutch
Repair the
wire harness
Charge
the system
Yes ,
Replace the
pressure switch
85756
L-16