Tacoma

Toyota Tacoma 2015-2018 Air Conditioning Workshop Manual

NOTICE:
These gauge indications occur when the refrigeration system opens and the system is charged with
refrigerant without vacuum purging.
Text in Illustration
*a Low Pressure Side *b High Pressure Side
SYMPTOM PROBABLE
CAUSE
DIAGNOSIS CORRECTIVE ACTION
Pressure extremely high
on both low and
high-pressure sides
Low-pressure piping is
too hot to touch
Air in
refrigeration
system
Air in
refrigeration
system
Vacuum
purging
insufficient
Check if compressor
oil is dirty or
insufficient
1.
Evacuate air and
charge system with
new refrigerant
2.
(8) The A/C system does not function effectively due to an expansion valve malfunction.
Text in Illustration
*a Low Pressure Side *b High Pressure Side
SYMPTOM PROBABLE
CAUSE
DIAGNOSIS CORRECTIVE
ACTION
Pressure extremely high on
both low and high-pressure
sides
Frost or condensation on
piping on low-pressure side
Problem with
expansion valve
Excessive refrigerant
in low pressure piping
Expansion valve open
too widely
Replace
expansion valve
cardiagn.com

Leave a Reply

Your email address will not be published. Required fields are marked *