Toyota T100 1996 Service Manual page 1976

Condition: Insufficient cooling
Symptom seen in
refrigeration system
S Pressure low on both low and
high pressure sides
S Bubbles seen in sight glass con-
tinuously
S Insufficient cooling performance
Condition: Insufficient cooling
Symptom seen in
refrigeration system
S Pressure low in both low and
high pressure sides
S Frost on tube from receiver to
unit
1996 TOYOTA T100 (RM449U)
AIR CONDITIONING
Probable cause
Gas leakage at some place in re-
frigeration system
Probable cause
Refrigerant flow obstructed by dirt
in receiver
− AIR CONDITIONING SYSTEM
(3) Insufficient cooling
Diagnosis
S Insufficient refrigerant in system
S Refrigerant leaking
(4) Poor circulation of refrigerant
Diagnosis
Receiver clogged
AC−5
Remedy
(1) Check for gas leakage with gas
leak detector and repair if neces-
sary
(2) Charge Proper amount of re-
frigerant
(3) If indicated pressure value is
near 0 when connected to gauge,
create the vacuum after inspecting
and repairing the location of the
leak
Remedy
Replace receiver
I01388
I01389