Control Cable - Jeep J-10 Series 1982 Technical & Service Manual

30-8 HEATER
8srvlcs Diagnosis
Condition Possible Cause
Correction
FAN MOTOR
WILL NOT RUN
AT ANY SPEED
(1) Blown fuse
(2) Loose connection
(3) Poor ground
(4) Faulty switch
(5) Faulty motor
(6) Faulty resistor
(1) Replace fuse
(2) Inspect and tighten
(3) Clean and tighten
(4) Replace switch
(5) Replace motor
(6) Replace resistor
FAN MOTOR RUNS
AT ONE SPEED ONLY
(1) Faulty switch
(2) Faulty resistor
(1) Replace switch
(2) Replace resistor
FAN RUNS BUT DOES
NOT CIRCULATE AIR
(1) Intake blocked
(2) Fan not secured to
motor shaft
(3) Inlet door not opening
(1) Clean intake
(2) Tighten securely
(3) Replace defective vacuum
motor, switch or hose.
HEATER WILL NOT
HEAT
(1) Coolant does not reach
proper temperature
(2) Heater core blocked
internally
(3) Heater core air-bound
(4) Blend-air door not in
proper position
(1) Check and replace
thermostat if necessary
(2) Flush or replace
core if necessary
(3) Purge air from core
(4) Adjust cable
WILL NOT DEFROST
(1) Vacuum motor not
operating
(2) Vacuum control switch
inoperative
(3) Defroster hose damaged
(1) Check for engine
vacuum at vacuum motor
(2) Check for engine vacuum
at switch
(3) Replace defroster hose
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CONTROL CABLE
The blend-air door control cable is equipped with a turn-
buckle to simplify adjustment. The turnbuckle is located
in the engine compartment close to the vacuum can.
(1) Rotate turnbuckle counterclockwise to obtain
complete closing of the blend-air door when the temper
ature control lever is in the far left Cool position.
(2) Check blend-air door operation by moving tem
perature control lever toward the Warm position and
back to the Cool position. Adjust cable if necessary.
(1) Disconnect battery negative cable.
(2) Remove instrument cluster retaining screws.
(3) Disconnect speedometer cable.
(4) Disconnect electrical connectors from cluster.
(5) Disconnect vacuum hoses from vacuum control
switch.
NOTE: Tag hoses according to their numbered location ^
for ease ofassembly. ^
(6) Remove cluster lamps. ^
(7) Disconnect cable from temperature control
lever. ^
(8) Remove instrument cluster. ^
(9) Disconnect cable from temperature control
lever. "^
(10) Disconnectcable from blend-air door. ^
(11) Connect cable to blend-air door.
(12) Route cable through dash panel and connect to ""i
temperature control lever. ^
(13) Positioninstrument clusterin dash opening.
(14) Install cluster lamps. ~*
(15) Connect cable totemperature control lever. ^
(16) Connect vacuum hoses.
(a) Number 1 on vacuum control switch goes to •****
defroster vacuum motor. ^
(b) Number 3 on vacuum control switch goes to
vacuum storage tank. **>
(c) Number 4 on vacuum control switch goes to fm
air inlet door vacuum motor.