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INSPECTION
Evaporator
Check evaporator
for
leakage
or
damage
If
damaged
replace
Expansion
valve
Check
expansion
valve
for
leakage
or
clogging
If
clogged
clean filter
in
expansion
valve
If
damaged replace
RECEIVER DRYER
AND PIPING
REMOVAL
AND
INSTAUATION
Receiver
dryer
I Disconnect
battery ground
cable
2
Discharge
system
Refer
to
Dis
charging System
under General Service
section
3
Disconnect compressor lead
wire
at connector
4
Disconnect
cooling
pipes
at
joints
Acno
Fig
AC 39
Diaconnecting
coo
ing
pipes
Notes
a
Plug
all
piping joints immediately
after
pipe
disconnection
to
prevent
entry
of dust
or
moisture laden
air
into
receiver
dryer
or
air aJOdi
tioning
system
b Use two wrenches when dIsconnect
ing
cooling pipes
5
Remove
four
screws
securing
receiver
dryer
bracket
to
vehicle
body
and detach compressor
relay
and
pres
sure
switch
as an
assembly
6
To
install
receiver
dryer
and
piping
reverse
the order of removal
Air
Conditioning
Notes
a
Apply
a
coat
of fresh compressor
oil
to
sealing
surfaces when
con
necting
cooling
pipes
b Use
two
wrenches when
connecting
cooling
pipes
c
Evacuate
cooling
system
then
re
charge
with
refrigerant
Refer
to
Evacuating
and
Checking
System
under General Service
sec
tion
d Check
refrigerant leakage
if
neces
sary
repair
Refer
to
Evacuating
and
Charging
System
under General Service
See
tion
Condenser
Disconnect
battery ground
cable
2
Discharge system
Refer
to
Dis
charging System
under General Service
section
3
Drain
engine
coolant
4
Remove radiator
grille
5
Remove
radiator
shroud
and
radiator
On
automatic transmission
models
disconnect both
torque
converter oil
hoses
Note
While
cooling
water is
hot take
precautions
against scalding
6
Disconnect
two
pipes
from
con
denser
remove
two
screws
securing
condenser
Condenser
can now
be
removed
AC485
Fig
AC 40
Removing
conden
er
Notes
a
Use two
wrenches when disconnect
ing pipe
joints
b
Plug openings immediately
after
disconnecting pipes
7
To install
reverse
the
order
of
removal
AC
29
Tightening
torque
Flare
nut
for copper
tube
from
compressor
2
5 to 4 0
kg
m
i8
to
29
ft
Ib
Flare
nut
for copper
tube
to receiver
dryer
2 5 to
3
5
kg
m
i8
to
25
ft lb
Notes
a
When
disconnecting
and
connecting
cooler
pipes
be
sure
to
use
two
wrenches
b
Apply
a
coat
of fresh compressor
oil
to
sealing
surfaces when
con
necting
cooler
pipes
c
To
prevent
possibility
of
explosion
due to
high
pressure within
cooling
system
do
not
clean condenser
with
steam
Always
use
cold
water
or
cold
compressed
air
d
Evacuate
cooling
system
then
re
charge
with
refrigerant
Refer
to
Evacuating
and
Charging
System
under
General
Service
sec
tion
e
Check
refrigerant
leakage
if
neces
sary
repair
Refer
to
Checking
for
Leaks
under
General Service
sec
tion
INSPECTION
RecelYer
dryer
Check for
refrigerant
leakage
or
damage
Check for
proper
connection
of
two
lead
wires
running
to pressure
switch
If any component
part
is
found
damaged
replace
receiver
dryer
and
pressure switch
as
an
assembly
Condenser
I
Check inlet
and outlet
pipe joints
and
sealing
surfaces for
damage
Re
place
parts if
damaged
or
leaky
2
Clogged
condenser fins
or
air
pas
sages may
reduce
cooling efficiency
of
condenser Clean
these
areas
with
dry
compressed
air
Piping
Check
piping
for
leakage
If
leakage
occurs
at
connections
retighten
connecting
nuts
Replace
if
leakage
persists
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