Toyota Celica 2005 Repair Manual page 2431

Condition: Insufficient cooling
Symptom seen in
refrigeration system
S Pressure too high on both low
and high pressure sides
S The low pressure piping hot to
the touch
S Bubbles seen in sight glass
Condition: Insufficient cooling
Symptom seen in
refrigeration system
S Pressure too high on both low
and high pressure sides
S Frost or large amount of dew on
piping on low pressure side
2005 CELICA (RM1131U)
AIR CONDITIONING
Probable cause
Air entered in refrigeration system
Probable cause
Trouble in expansion valve
− AIR CONDITIONING SYSTEM
(7) Air present in refrigeration system
Diagnosis
S Air present in refrigeration sys-
tem
S Insufficient vacuum purging
(8) Expansion valve improperly
Diagnosis
S Excessive refrigerant in low
pressure piping
S Expansion valve opened too
wide
2430
NOTE : These gauge indica-
tions are shown when the
refrigeration system has
been opens and the refriger-
ant charged without vacuum
purging.
Remedy
(1) Check compressor oil to see if
it is dirty or insufficient
(2) Evacuate air and charge new
refrigerant
Remedy
Check expansion valve
Replace if defective
AC−7
I01392
I01450