11. Disconnect the connectors from all the control
motors and sensors attached to the heater-
evaporator unit.
12. Remove the two mounting bolts and two nuts, then
remove the heater-evaporator unit through the
passenger door.
: CORROSION RESISTANT
BOLT
HEATER-EVAPORATOR UNIT
NUTS
30 N·m
(3.0 kg-m,
22 Ib-ft)
SRS UNIT
6 x 1.0 mm
10 N·m (1.0 kg-m, 7 Ib-ft)
13. Install the heater-evaporator unit in the reverse order of removal, and:
If you're installing a new evaporator, add
refrigerant oil (ND-OIL 8) see page 22-69 .
Replace 0-rings with new ones at each fitting,
and apply refrigerant oil to them.
NOTE: Be sure to use the right 0-rings for
R-134a to avoid leakage.
14. Fill the radiator and reservoir tank with the proper
engine coolant mixture. Bleed the air from the cool-
ing system (see section 10).
CAUTION: Follow the sequence described in the air
bleed procedure. If you don't, you may leave air in
the system which could damage the engine.
15. If necessary, adjust the heater valve cable:
Set the air mix control motor at COOL position
(see page 22-57) .
Connect the end of the heater valve cable to the
heater valve arm. Gently slide the cable outer housing back from
the end enough to take up any slack in the cable,
bu
t not enough to make the other end move the
arm on the air mix control motor. Then snap the
clamp down over the cable housing.
CLAMP
HEATER VALVE
ARM
HEATER VALVE
CABLE
16. Turn the blower on, and make sure that there is no air leakage.
17. Charge the system (see page 22-91), and test per- formance (see page 22-70).ProCarManuals.com
