in the Removal and Installation section of this group
for the procedures.
(2) Rotate the temperature control knob on the
heater-A/C control so that the knob pointer is in the
12 o’clock position.
(3) Pull the temperature control knob straight out
from the heater-A/C control base until the perimeter
of the knob (not the knob pointer) protrudes about 6
millimeters (0.25 inch) from the face of the control
base.
(4) Rotate the temperature control knob to the 1
o’clock position. Push in on the knob slightly and con-
tinue rotating the knob to its full clockwise stop. The
knob pointer should be aimed at a position about 8
millimeters (0.315 inch) beyond the end of the grad-
uated red strobe temperature control graphic on the
face of the heater-A/C control base. If the knob is not
pointed to the correct position, go back to Step 2 and
repeat the adjustment procedure.
(5) Rotate the temperature control knob counter-
clockwise until the knob pointer is in the 12 o’clock
position again.
(6) Push the temperature control knob straight in
towards the heater-A/C control base until the perim-
eter of the knob (not the knob pointer) is flush with
the face of the heater-A/C control base.
(7) Rotate the knob to its full clockwise stop again.
The knob pointer should be aimed at the end of the
graduated red strobe temperature control graphic on
the face of the heater-A/C control base. If OK, go to
Step 8. If not OK, go back to Step 2.
(8) Rotate the knob to its full counterclockwise
stop and release the knob. If the knob springs back
from the counterclockwise stop, the self-adjuster clip
that secures the temperature control cable to the
blend-air door lever is improperly installed. See Tem-
perature Control Cable in the Removal and Installa-
tion section of this group for the procedures. If the
knob does not spring back, the temperature control
cable adjustment is complete.
SPECIFICATIONS
A/C APPLICATION TABLE
Item Description Notes
VEHICLE Durango
SYSTEM R134a
w/expansion
valve
Optional - Rear
A/C
Evaporator in
roof, Rear
blower switch in
headliner
COMPRESSOR Sanden
SD7H15
SP-20 PAG oil
Freeze–up
Control
Electronic
Clutch Cycling
Switch (ECCS)
mounted on
expansion valve
Low psi Control opens < 7-13
psi - resets >
15-28 psi
mounted on
suction line
jumper
High psi Control opens >
450-490 psi -
resets <
270-330 psi
mounted on
discharge line
CONTROL
HEAD
manual type
Mode Door vacuum
Blend Air Door cable
Fresh/Recirc
door
vacuum
Blower Motor hardwired to
control head
resistor block
COOLING
FANS
viscous
clutch/electric
fan cooling
module
CLUTCH
Control relay PCM
Draw 2.0 - 3.9 amps
@12V
6 0.5V @ 70° F
Gap 0.016” - 0.0319
DRB IIIT
Reads TPS, RPM, A/C
switch
Actuators clutch
DN HEATING AND AIR CONDITIONING 24 - 73
ADJUSTMENTS (Continued)
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