Dodge Viper SRT-10 (ZB). Manual — part 269
(4) Install the HVAC housing (Refer to 24 - HEAT-
ING & AIR CONDITIONING/DISTRIBUTION/HVAC
HOUSING - INSTALLATION).
HEATER INLET HOSE
REMOVAL
WARNING: Refer to the applicable warnings and
cautions for this system before performing the fol-
lowing operation (Refer to 24 - HEATING & AIR
CONDITIONING/PLUMBING - WARNINGS) and (Refer
to 24 - HEATING & AIR CONDITIONING/PLUMBING -
CAUTIONS). Failure to follow the warnings and cau-
tions could result in possible personal injury or
death.
NOTE: The heater inlet hose is constructed from
formed steel tubing and rubber hoses. Depending
on application, the ends are secured to the heater
core, engine oil cooler or the engine by spring ten-
sion clamps.
(1) Drain the engine cooling system (Refer to 7 -
COOLING - STANDARD PROCEDURE - COOLING
SYSTEM DRAIN).
(2) Remove the heater hose retainer from the right
inner fender and separate the heater inlet and return
hoses (Fig. 16).
(3) Using spring tension clamp pliers, compress
and slide the clamps off of each end of the hose being
removed.
CAUTION:
DO NOT apply excessive pressure on heater tubes
or
connections
when
removing
heater
hoses.
Excessive pressure may damage or deform the
tubes/heater core, causing an engine coolant leak.
(4) Disconnect each hose end by carefully twisting
the hose back and forth on the tube, while gently
pulling it away from the end of the tube.
(5) If necessary, carefully cut the hose end and
peel the hose off of the tube.
NOTE:
Replacement of the heater inlet hose will be
required if the hose ends are cut for removal.
Fig. 15 HVAC Housing - Disassembled
1 - PANEL MODE DOOR ACTUATOR
2 - FLOOR/DEFROST MODE DOOR ACTUATOR
3 - UPPER HVAC HOUSING
4 - RECIRCULATION-AIR DOOR
5 - RECIRCULATION DOOR ACTUATOR
6 - FOAM SEAL
7 - A/C EVAPORATOR
8 - HVAC WIRE HARNESS
9 - LOWER HVAC HOUSING
10 - BLOWER MOTOR AND WHEEL
11 - BLOWER MOTOR RESISTOR BLOCK
12 - HEATER CORE
13 - BLEND-AIR DOOR
14 - BLEND DOOR ACTUATOR
15 - FOAM SEAL
16 - PANEL-AIR DOOR
17 - FLOOR/DEFROST-AIR DOOR
24 - 50
PLUMBING
ZB
HEATER CORE (Continued)
(6) Remove the heater inlet hose from the engine
compartment.
INSTALLATION
(1) Position the heater inlet hose into the engine
compartment.
(2) Using spring tension clamp pliers, compress
and slide each clamp away from the end of the hose
being installed.
CAUTION:
DO NOT apply excessive pressure on heater tubes
or connections when install the heater inlet hose.
Excessive pressure may damage or deform the
heater tubes or connections, causing an engine
coolant leak.
(3) Install each hose end by carefully twisting the
hose back and forth while gently pushing it onto the
tube.
(4) Using spring tension clamp pliers, compress
and slide the clamps onto each end of the hose being
installed.
(5) Install the heater hoses into the retainer
bracket.
(6) Install the heater hose retainer to the right
inner front fender.
(7) Refill the engine cooling system (Refer to 7 -
COOLING - STANDARD PROCEDURE - COOLING
SYSTEM REFILL).
HEATER RETURN HOSE
REMOVAL
WARNING: Refer to the applicable warnings and
cautions for this system before performing the fol-
lowing operation (Refer to 24 - HEATING & AIR
CONDITIONING/PLUMBING - WARNINGS) and (Refer
to 24 - HEATING & AIR CONDITIONING/PLUMBING -
CAUTIONS). Failure to follow the warnings and cau-
tions could result in possible personal injury or
death.
NOTE: The heater return tube is constructed from
formed steel tubing and rubber hoses. Depending
on application, the ends are secured to the heater
core, engine oil cooler or the engine by spring ten-
sion clamps.
(1) Drain the engine cooling system (Refer to 7 -
COOLING - STANDARD PROCEDURE - COOLING
SYSTEM DRAIN).
(2) Remove the heater hose retainer from the right
inner fender and separate the heater inlet and return
hoses (Fig. 17).
(3) Using spring tension clamp pliers, compress
and slide the clamps off of each end of the hose being
removed.
CAUTION:
DO NOT apply excessive pressure on heater tubes
or
connections
when
removing
heater
hoses.
Excessive pressure may damage or deform the
tubes/heater core, causing an engine coolant leak.
(4) Disconnect each hose end by carefully twisting
the hose back and forth on the tube, while gently
pulling it away from the end of the tube.
(5) If necessary, carefully cut the hose end and
peel the hose off of the tube.
NOTE:
Replacement of the heater return hose will be
required if the hose ends are cut for removal.
(6) Remove the heater return hose from the engine
compartment.
INSTALLATION
(1) Position the heater return hose into the engine
compartment.
Fig. 16 Heater Inlet Hose
1 - RADIATOR COOLANT RESERVOIR
2 - HOSE CLAMP (5)
3 - HEATER INLET HOSE
4 - HEATER HOSE RETAINER
5 - HEATER RETURN HOSE
ZB
PLUMBING
24 - 51
HEATER INLET HOSE (Continued)
(2) Using spring tension clamp pliers, compress
and slide each clamp away from the end of the hose
being installed.
CAUTION:
DO NOT apply excessive pressure on heater tubes
or connections when install the heater return hose.
Excessive pressure may damage or deform the
heater tubes or connections, causing an engine
coolant leak.
(3) Install each hose end by carefully twisting the
hose back and forth while gently pushing it onto the
tube.
(4) Using spring tension clamp pliers, compress
and slide the clamps onto each end of the hose being
installed.
(5) Install the heater hoses into the retainer
bracket.
(6) Install the heater hose retainer to the right
inner front fender.
(7) Refill the engine cooling system (Refer to 7 -
COOLING - STANDARD PROCEDURE - COOLING
SYSTEM REFILL).
LIQUID LINE
DESCRIPTION
The liquid line is the refrigerant line that goes
from the A/C condenser to the A/C evaporator. The
liquid line contains the A/C variable orifice valve
(VOV) and includes the high side service port. The
liquid line has no serviceable parts except the rubber
O-ring seals and the service port valve core.
CAUTION: Use only O-ring seals specified for the
vehicle. Failure to use correct O-ring seal will cause
the refrigerant system connection to leak.
The O-ring seals used on the connections are made
from a special type of rubber not affected by R-134a
refrigerant. The O-ring seals must be replaced when-
ever the liquid line is removed and installed.
If the liquid line is found to be leaking or is dam-
aged, it must be replaced.
REMOVAL
WARNING: Refer to the applicable warnings and
cautions for this system before performing the fol-
lowing operation (Refer to 24 - HEATING & AIR
CONDITIONING/PLUMBING - WARNINGS) and (Refer
to 24 - HEATING & AIR CONDITIONING/PLUMBING -
CAUTIONS). Failure to follow the warnings and cau-
tions could result in possible personal injury or
death.
(1) Disconnect and isolate the negative battery
cable.
(2) Recover the refrigerant from the refrigerant
system (Refer to 24 - HEATING & AIR CONDITION-
ING/PLUMBING
-
STANDARD
PROCEDURE
-
REFRIGERANT SYSTEM RECOVERY).
(3) Remove the air intake ducts from the front of
the air cleaner assembly (Refer to 9 - ENGINE/AIR
INTAKE SYSTEM - REMOVAL).
(4) Remove the bolt that secures the liquid line
bracket to the right inner front fender (Fig. 18).
(5) Remove the bolt that secures the liquid line to
the A/C condenser (Fig. 19).
(6) Disconnect the liquid line from the A/C con-
denser and remove and discard the O-ring seal.
(7) Install plugs in, or tape over the opened liquid
line fitting and condenser port.
(8) Loosen the nut that secures the liquid line to
the A/C evaporator (Fig. 20).
(9) Disconnect the liquid line from the A/C evapo-
rator and remove and discard the O-ring seal.
(10) Install plugs in, or tape over the opened liquid
line fitting and the evaporator tube.
Fig. 17 Heater Return Hose
1 - RADIATOR COOLANT RESERVOIR
2 - HOSE CLAMP (5)
3 - HEATER INLET HOSE
4 - HEATER HOSE RETAINER
5 - HEATER RETURN HOSE
24 - 52
PLUMBING
ZB
HEATER RETURN HOSE (Continued)
(11) Remove the liquid line from the engine com-
partment.
INSTALLATION
(1) Position the liquid line into the engine com-
partment.
(2) Remove the tape or plugs from the opened liq-
uid line fitting and the evaporator tube.
(3) Lubricate a new rubber O-ring seal with clean
refrigerant oil and install it on the liquid line fitting.
Use only the specified O-ring as it is made of a spe-
cial material for the R-134a system. Use only refrig-
erant oil of the type recommended for the A/C
compressor in the vehicle.
(4) Connect the liquid line to the A/C evaporator.
(5) Tighten the nut that secures the liquid line to
the A/C evaporator. Tighten the nut to 13.5 N·m (10
ft. lbs.).
(6) Remove the tape or plugs from the liquid line
fitting and condenser port.
(7) Lubricate a new rubber O-ring seal with clean
refrigerant oil and install it on the liquid line fitting.
Use only the specified O-ring as it is made of a spe-
cial material for the R-134a system. Use only refrig-
erant oil of the type recommended for the A/C
compressor in the vehicle.
(8) Connect the liquid line to the A/C condenser.
Fig. 18 Liquid Line
1 - A/C CONDENSER
2 - HIGH SIDE SERVICE PORT
3 - LIQUID LINE
4 - SUCTION LINE
5 - LOW SIDE SERVICE PORT
6 - TO A/C COMPRESSOR
7 - BOLT
Fig. 19 Liquid Line - A/C Condenser
1 - UPPER MOUNTING BOLT
2 - A/C CONDENSER
3 - LOWER MOUNTING BOLT
4 - RIGHT FRAME RAIL
5 - RADIATOR
6 - BOLT
7 - SUCTION LINE
Fig. 20 Liquid Line - Evaporator
1 - SUCTION LINE (REAR)
2 - SUCTION LINE (FRONT)
3 - A/C EVAPORATOR TUBES
4 - LIQUID LINE
ZB
PLUMBING
24 - 53
LIQUID LINE (Continued)
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