2001 CHRYSLER VOYAGER engine

CAUTION:
When removing the heater hose from the heater
core or supply and return tube nipples, DO NOT
apply excessive pressure. Excessive pressure may
damage or deform the nipples and/or the heater
core causing an engine coolant leak.(3) After the clamp has been moved, grasp the end
of the hose firmly and carefully twist the hose back
and forth while pulling it away from the barbed end
of the nipple. Repeat this procedure at the opposite
end of the hose being removed. If this procedure is
not successful in removing the hose from the nipple,
carefully make a parallel cut through the hose where
Fig. 21 Heater Plumbing - 2.4L Engine
1 - ENGINE OUTLET NIPPLE
2 - HEATER SUPPLY
3 - HEATER CORE OUTLET
4 - HEATER CORE INLET
5 - SCREW
6 - HEATER TUBE & HOSE UNIT
7 - HEATER RETURN
8 - ENGINE INLET NIPPLE
Fig. 22 Heater Plumbing - 3.3/3.8L Engine w/o Rear
Heater
1 - ENGINE OUTLET NIPPLE
2 - HEATER CORE OUTLET
3 - HEATER CORE INLET
4 - HEATER RETURN TUBE & HOSE (TYPICAL)
Fig. 23 Heater Plumbing - 3.3/3.8L Engine w/Rear
Heater
1 - STUD
2 - HEATER CORE OUTLET
3 - HEATER CORE INLET
4 - TO ENGINE OUTLET NIPPLE
5 - TO UNDERBODY PLUMBING
6 - TO HEATER RETURN TUBE & HOSE
Fig. 24 Heater Return - 3.3/3.8L Engine w/o Oil
Cooler
1 - WATER PUMP RETURN NIPPLE
2 - HEATER RETURN TUBE & HOSE
3 - SCREW
4 - SCREW
RSPLUMBING - FRONT24-81
HEATER HOSE (Continued)

it is engaged on the nipple and peel the hose off of
the nipple. This method of removal will require
heater hose replacement.
INSTALLATION
There are several heater core plumbing configura-
tions used on this model, depending upon the engine
size and other optional equipment. One plumbing
configuration is used for all 2.4L engines (Fig. 21),
while the 3.3L and 3.8L engines have unique heater
return plumbing on the engine for models with or
without an optional engine oil cooler (Fig. 24) or (Fig.
25). There are also unique plumbing configurations
at the heater core for models with or without the
optional rear heater and air conditioner (Fig. 22) or
(Fig. 23). All models use a combination of formed
steel tubing and rubber hoses. In most cases, the
rubber hose is secured to the steel tubing with a
spring tension clamp.
WARNING: REFER TO THE APPLICABLE WARN-
INGS AND CAUTIONS FOR THIS SYSTEM BEFORE
PERFORMING THE FOLLOWING OPERATION.
(Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING FRONT - WARNING - HEATER PLUMB-
ING).
(1) Using spring tension clamp pliers, compress
and slide the clamps that secure each end of the
heater hose toward the center of the hose being
installed. Release the clamp when it is near the cen-
ter of the hose.(2) Grasp one end of the heater hose being
installed firmly and carefully twist the hose back and
forth while pushing it over from the barbed end of
the nipple. Repeat this procedure at the opposite end
of the hose being installed.
(3) Using spring tension clamp pliers, compress
and slide the clamps that secure each end of the
heater hose over the tube or nipple. Release the
clamp when it is over the tube or nipple.
(4) Refill the engine cooling system. (Refer to 7 -
COOLING - STANDARD PROCEDURE - COOLING
SYSTEM REFILL).
LIQUID LINE
REMOVAL
The front air conditioner liquid line is serviced in
two sections. The front section connects between the
condenser and the filter/drier and includes the high
side service port on the fitting for the filter/drier. The
rear section connects between the filter/drier and the
expansion valve and includes the fitting for the A/C
pressure transducer. On models equipped with the
optional rear air conditioner, the rear section of the
front air conditioner liquid line also includes a liquid
line hose and tube extension that connects the front
liquid line to the liquid line for the rear air condi-
tioner.
WARNING: REFER TO THE APPLICABLE WARN-
INGS AND CAUTIONS FOR THIS SYSTEM BEFORE
PERFORMING THE FOLLOWING OPERATION.
(Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING - FRONT - WARNING - A/C PLUMBING)
and (Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING - FRONT - CAUTION - A/C PLUMBING).
FRONT SECTION
(1) Recover the refrigerant from the refrigerant
system. (Refer to 24 - HEATING & AIR CONDI-
TIONING/PLUMBING - FRONT/REFRIGERANT -
STANDARD PROCEDURE - REFRIGERANT
RECOVERY).
(2) Disconnect and isolate the battery negative
cable.
(3) Remove the air cleaner housing from the right
side of the engine compartment.
(4) Remove the two large screws that secure the
front fascia and the outboard ends of the radiator
sight shield to the radiator closure panel crossmem-
ber (Fig. 26).
(5) Remove the five small screws that secure the
front fascia grille inserts to the radiator sight shield.
(6) Remove the radiator sight shield from the radi-
ator closure panel crossmember.
Fig. 25 Heater Return - 3.3/3.8L Engine w/Oil Cooler
1 - ENGINE INLET NIPPLE
2 - HEATER RETURN TUBE & HOSE
3 - SCREW
4 - SCREW
5 - OIL COOLER
7 - HEATER RETURN HOSE
24 - 82 PLUMBING - FRONTRS
HEATER HOSE (Continued)

(7) Remove the nut that secures the liquid line fit-
ting to the condenser on the right side of the cooling
module (Fig. 27).
(8) Disconnect the liquid line fitting from the con-
denser outlet port.
(9) Remove the seal from the liquid line fitting and
discard.
(10) Install plugs in, or tape over the opened liquid
line fitting and the condenser outlet port.(11) Disengage the retainer that secures the liquid
line routing clip to the top of the right frame rail
ahead of the front strut tower in the engine compart-
ment (Fig. 28).
(12) Remove the screw that secures the liquid line
front section fitting to the top of the filter-drier.
(13) Disconnect the liquid line fitting from the fil-
ter-drier inlet port.
(14) Remove the seal from the liquid line fitting
and discard.
(15) Install plugs in, or tape over the opened liquid
line fitting and the filter-drier inlet port.
(16) Remove the front section of the front liquid
line from the engine compartment.
REAR SECTION
(1) Recover the refrigerant from the refrigerant
system. (Refer to 24 - HEATING & AIR CONDI-
TIONING/PLUMBING - FRONT/REFRIGERANT -
Fig. 26 Radiator Sight Shield
1 - LARGE SCREWS (2)
2 - SMALL SCREWS (5)
3 - RADIATOR SIGHT SHIELD
4 - GRILLE INSERTS
5 - FRONT FASCIA
Fig. 27 Condenser Connections
1 - CONDENSER
2 - DISCHARGE LINE FITTING
3 - LIQUID LINE FITTING
4 - NUT
Fig. 28 Front Liquid Lines
1 - A/C GROUND STRAP
2 - NUT
3 - WELD STUD
4 - A/C PRESSURE TRANSDUCER
5 - WELD STUD (2)
6 - EXPANSION VALVE
7 - FRONT LIQUID LINE REAR SECTION
8 - LIQUID LINE EXTENSION (REAR A/C ONLY)
9 - NUT (2)
10 - FILTER-DRIER
11 - ROUTING CLIP
12 - FRONT LIQUID LINE FRONT SECTION
RSPLUMBING - FRONT24-83
LIQUID LINE (Continued)

STANDARD PROCEDURE - REFRIGERANT
RECOVERY).
(2) Disconnect and isolate the battery negative
cable.
(3) Remove the air cleaner housing from the right
side of the engine compartment.
(4) Disconnect the drain tube from the wiper mod-
ule drain on the right side of the engine compart-
ment.
(5) Remove the A/C pressure transducer from the
fitting on the front liquid line rear section. (Refer to
24 - HEATING & AIR CONDITIONING/CONTROLS
- FRONT/A/C PRESSURE TRANSDUCER - REMOV-
AL).
(6) Remove the nut that secures the A/C ground
strap to the weld stud on the top of the right front
strut tower (Fig. 28).
(7) Remove the A/C ground strap eyelet terminal
connector from the weld stud.
(8) Remove the screw that secures the liquid line
rear section fitting to the top of the filter-drier.
(9) Disconnect the liquid line fitting from the fil-
ter-drier outlet port.
(10) Remove the seal from the liquid line fitting
and discard.
(11) Install plugs in, or tape over the opened liquid
line fitting and the filter-drier outlet port.
(12) Remove the nut that secures the suction line
and liquid line fittings to the expansion valve.
(13) Disconnect the suction line and liquid line fit-
tings from the expansion valve.
(14) Remove the seals from the suction line and
liquid line fittings and discard.
(15) Install plugs in, or tape over the opened suc-
tion line and liquid line fittings and both expansion
valve ports.
(16) If the vehicle is equipped with the optional
rear air conditioner, go to Step 17. If the vehicle does
not have the optional rear air conditioner, go to Step
23.
(17) Raise and support the vehicle.
(18) Cut the tie strap located just forward of the
connections between the underbody plumbing and
the engine compartment plumbing for the rear
heater and air conditioner (Fig. 29).
(19) Disconnect the front liquid line extension fit-
ting from the underbody liquid line fitting for the
rear air conditioner.
(20) Remove the seal from the underbody liquid
line fitting and discard.
(21) Install plugs in, or tape over the opened liquid
line fittings.
(22) Lower the vehicle.
(23) Remove the front liquid line rear section from
the engine compartment.
INSTALLATION
The front air conditioner liquid line is serviced in
two sections. The front section connects between the
condenser and the filter/drier and includes the high
side service port on the fitting for the filter/drier. The
rear section connects between the filter/drier and the
expansion valve and includes the fitting for the A/C
pressure transducer. On models equipped with the
optional rear air conditioner, the rear section of the
front air conditioner liquid line also includes a liquid
line hose and tube extension that connects the front
liquid line to the liquid line for the rear air condi-
tioner.
FRONT SECTION
(1) Position the front section of the front liquid
line into the engine compartment.
(2) Remove the tape or plugs from the liquid line
front section fitting for the filter-drier and the filter-
drier inlet port (Fig. 28).
(3) Lubricate a new rubber O-ring seal with clean
refrigerant oil and install it on the liquid line fitting.
(4) Reconnect the liquid line fitting to the filter-
drier inlet port on the top of the filter-drier.
(5) Install and tighten the screw that secures the
liquid line fitting to the filter-drier. Tighten the screw
to 2 N´m (16 in. lbs.).
(6) Engage the retainer that secures the liquid line
routing clip to the top of the right frame rail ahead of
the front strut tower in the engine compartment.
(7) Remove the tape or plugs from the condenser
outlet port and the liquid line fitting (Fig. 27).
Fig. 29 Underbody Connections
1 - SUCTION LINE EXTENSION
2 - LIQUID LINE EXTENSION
3 - TIE STRAP
4- HEATER LINE EXTENSIONS
5 - UNDERBODY LINES
24 - 84 PLUMBING - FRONTRS
LIQUID LINE (Continued)

(8) Lubricate a new rubber O-ring seal with clean
refrigerant oil and install it on the liquid line fitting.
(9) Reconnect the liquid line fitting to the con-
denser outlet port on the right side of the cooling
module.
(10) Install and tighten the nut that secures the
liquid line fitting to the condenser. Tighten the nut to
23 N´m (17 ft. lbs.).
(11) Position the radiator sight shield onto the
radiator closure panel crossmember (Fig. 26).
(12) Install and tighten the five small screws that
secure the front fascia grille inserts to the radiator
sight shield. Tighten the screws to 2 N´m (16 in. lbs.).
(13) Install and tighten the two large screws that
secure the front fascia and the outboard ends of the
radiator sight shield to the radiator closure panel
crossmember. Tighten the screws to 6 N´m (53 in.
lbs.).
(14) Reinstall the air cleaner housing into the
right side of the engine compartment.
(15) Reconnect the battery negative cable.
(16) Evacuate the refrigerant system. (Refer to 24
- HEATING & AIR CONDITIONING/PLUMBING -
FRONT/REFRIGERANT - STANDARD PROCE-
DURE - REFRIGERANT SYSTEM EVACUATE).
(17) Charge the refrigerant system. (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING -
FRONT/REFRIGERANT - STANDARD PROCE-
DURE - REFRIGERANT SYSTEM CHARGE).
REAR SECTION
(1) Position the rear section of the front liquid line
into the engine compartment.
(2) Remove the tape or plugs from the suction line
and liquid line fittings and both expansion valve
ports (Fig. 28).
(3) Lubricate new rubber O-ring seals with clean
refrigerant oil and install them on the suction line
and liquid line fittings.
(4) Reconnect the liquid line and suction line fit-
tings to the expansion valve.
(5) Install and tighten the nut that secures the
suction line and liquid line fittings to the expansion
valve. Tighten the nut to 23 N´m (17 ft. lbs.).
(6) Remove the tape or plugs from the liquid line
rear section fitting for the filter-drier and the filter-
drier outlet port.
(7) Lubricate a new rubber O-ring seal with clean
refrigerant oil and install it on the liquid line fitting.
(8) Reconnect the liquid line fitting to the filter-
drier outlet port on the top of the filter-drier.
(9) Install and tighten the screw that secures the
liquid line fitting to the filter-drier. Tighten the screw
to 2 N´m (16 in. lbs.).(10) Reinstall the A/C ground strap eyelet terminal
connector onto the weld stud on the top of the right
front strut tower.
(11) Install and tighten the nut that secures the
A/C ground strap to the weld stud. Tighten the nut
to 12 N´m (106 in. lbs.).
(12) Reinstall the A/C pressure transducer onto
the fitting on the front liquid line rear section. (Refer
to 24 - HEATING & AIR CONDITIONING/CON-
TROLS - FRONT/A/C PRESSURE TRANSDUCER -
INSTALLATION).
(13) Reconnect the drain tube to the wiper module
drain on the right side of the engine compartment.
(14) Reinstall the air cleaner housing into the
right side of the engine compartment.
(15) Reconnect the battery negative cable.
(16) If the vehicle is equipped with the optional
rear air conditioner, go to Step 17. If the vehicle does
not have the optional rear air conditioner, go to Step
23.
(17) Raise and support the vehicle.
(18) Remove the tape or plugs from the liquid line
rear section extension fitting and the underbody liq-
uid line fitting (Fig. 29).
(19) Lubricate a new rubber O-ring seal with clean
refrigerant oil and install it on the underbody liquid
line fitting.
(20) Reconnect the liquid line rear section exten-
sion fitting to the underbody liquid line fitting.
Tighten the fittings to 23 N´m (17 ft. lbs.).
(21) Install a new tie strap just forward of the con-
nections between the underbody plumbing and the
engine compartment plumbing for the rear heater
and air conditioner.
(22) Lower the vehicle.
(23) Evacuate the refrigerant system. (Refer to 24
- HEATING & AIR CONDITIONING/PLUMBING -
FRONT/REFRIGERANT - STANDARD PROCE-
DURE - REFRIGERANT SYSTEM EVACUATE).
(24) Charge the refrigerant system. (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING -
FRONT/REFRIGERANT - STANDARD PROCE-
DURE - REFRIGERANT SYSTEM CHARGE).
RECEIVER/DRIER
DESCRIPTION
The filter-drier is mounted in a bracket secured to
the right front strut tower in the engine compart-
ment. The filter-drier is connected between the front
and rear sections of the liquid line between the con-
denser outlet and the evaporator inlet. The filter-
drier cannot be repaired. If the filter-drier is faulty
or damaged, or if the refrigerant system has been
RSPLUMBING - FRONT24-85
LIQUID LINE (Continued)

contaminated or left open to the atmosphere for an
indeterminable period, it must be replaced.
OPERATION
The filter-drier performs a filtering action to pre-
vent foreign material in the refrigerant from contam-
inating the expansion valve. A desiccant bag is
mounted inside the filter-drier canister to absorb any
moisture which may have entered and become
trapped within the refrigerant system. In addition,
during periods of high demand air conditioner opera-
tion, the filter-drier acts as a reservoir to store sur-
plus refrigerant. Refrigerant enters the filter-drier as
a high-pressure, low-temperature liquid.
REMOVAL
WARNING: REFER TO THE APPLICABLE WARN-
INGS AND CAUTIONS FOR THIS SYSTEM BEFORE
PERFORMING THE FOLLOWING OPERATION.
(Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING - FRONT - WARNING - A/C PLUMBING)
and (Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING - FRONT - CAUTION - A/C PLUMBING).
(1) Recover the refrigerant from the refrigerant
system. (Refer to 24 - HEATING & AIR CONDI-
TIONING/PLUMBING - FRONT/REFRIGERANT -
STANDARD PROCEDURE - REFRIGERANT
RECOVERY).
(2) Remove the air cleaner housing from the right
side of the engine compartment.
(3) Remove the screw that secures the liquid line
front section fitting to the top of the filter-drier (Fig.
30).
(4) Disconnect the liquid line fitting from the fil-
ter-drier inlet port.
(5) Remove the seal from the liquid line fitting and
discard.
(6) Install plugs in, or tape over the opened liquid
line fitting and the filter-drier inlet port.
(7) Remove the screw that secures the liquid line
rear section fitting to the top of the filter-drier.
(8) Disconnect the liquid line fitting from the fil-
ter-drier outlet port.
(9) Remove the seal from the liquid line fitting and
discard.
(10) Install plugs in, or tape over the opened liquid
line fitting and the filter-drier outlet port.
(11) Remove the two nuts that secure the filter-
drier mounting bracket to the weld studs on the side
of the right front strut tower.
(12) Remove the filter-drier and mounting bracket
unit from the studs.
INSTALLATION
NOTE: If the filter-drier is being replaced, add 30
milliliters (1 fluid ounce) of refrigerant oil to the
refrigerant system. Use only refrigerant oil of the
type recommended for the compressor in the vehi-
cle.
(1) Position the filter-drier and mounting bracket
unit onto the weld studs on the side of the right front
strut tower (Fig. 30).
(2) Install and tighten the two nuts that secure
the filter-drier mounting bracket to the studs.
Tighten the nuts to 10 N´m (89 in. lbs.).
(3) Remove the tape or plugs from the liquid line
rear section fitting for the filter-drier and the filter-
drier outlet port.
(4) Lubricate a new rubber O-ring seal with clean
refrigerant oil and install it on the liquid line fitting.
(5) Reconnect the liquid line fitting to the filter-
drier outlet port on the top of the filter-drier.
Fig. 30 Front Liquid Lines
1 - A/C GROUND STRAP
2 - NUT
3 - WELD STUD
4 - A/C PRESSURE TRANSDUCER
5 - WELD STUD (2)
6 - EXPANSION VALVE
7 - FRONT LIQUID LINE REAR SECTION
8 - LIQUID LINE EXTENSION (REAR A/C ONLY)
9 - NUT (2)
10 - FILTER-DRIER
11 - ROUTING CLIP
12 - FRONT LIQUID LINE FRONT SECTION
24 - 86 PLUMBING - FRONTRS
RECEIVER/DRIER (Continued)

(6) Install and tighten the screw that secures the
liquid line fitting to the filter-drier. Tighten the screw
to 2 N´m (18 in. lbs.).
(7) Remove the tape or plugs from the liquid line
front section fitting for the filter-drier and the filter-
drier inlet port.
(8) Lubricate a new rubber O-ring seal with clean
refrigerant oil and install it on the liquid line fitting.
(9) Reconnect the liquid line fitting to the filter-
drier inlet port on the top of the filter-drier.
(10) Install and tighten the screw that secures the
liquid line fitting to the filter-drier. Tighten the screw
to 2 N´m (18 in. lbs.).
(11) Reinstall the air cleaner housing into the
right side of the engine compartment.
(12) Evacuate the refrigerant system. (Refer to 24
- HEATING & AIR CONDITIONING/PLUMBING -
FRONT/REFRIGERANT - STANDARD PROCE-
DURE - REFRIGERANT SYSTEM EVACUATE).
(13) Charge the refrigerant system. (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING -
FRONT/REFRIGERANT - STANDARD PROCE-
DURE - REFRIGERANT SYSTEM CHARGE).
REFRIGERANT
DESCRIPTION
The refrigerant used in this air conditioning sys-
tem is a HydroFluoroCarbon (HFC), type R-134a.
Unlike R-12, which is a ChloroFluoroCarbon (CFC),
R-134a refrigerant does not contain ozone-depleting
chlorine. R-134a refrigerant is a non-toxic, non-flam-
mable, clear, and colorless liquefied gas. Even though
R-134a does not contain chlorine, it must be
reclaimed and recycled just like CFC-type refriger-
ants. This is because R-134a is a greenhouse gas and
can contribute to global warming.
OPERATION
R-134a refrigerant is not compatible with R-12
refrigerant in an air conditioning system. Even a
small amount of R-12 added to an R-134a refrigerant
system will cause compressor failure, refrigerant oil
sludge or poor air conditioning system performance.
In addition, the PolyAlkylene Glycol (PAG) synthetic
refrigerant oils used in an R-134a refrigerant system
are not compatible with the mineral-based refriger-
ant oils used in an R-12 refrigerant system. R-134a
refrigerant system service ports, service tool couplers
and refrigerant dispensing bottles have all been
designed with unique fittings to ensure that an
R-134a system is not accidentally contaminated with
the wrong refrigerant (R-12). There are also labels
posted in the engine compartment of the vehicle and
on the compressor identifying to service techniciansthat the air conditioning system is equipped with
R-134a.
DIAGNOSIS AND TESTING - REFRIGERANT
SYSTEM CHARGE LEVEL
WARNING: REFER TO THE APPLICABLE WARN-
INGS AND CAUTIONS FOR THIS SYSTEM BEFORE
PERFORMING THE FOLLOWING OPERATION.
(Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING - FRONT - WARNING - A/C PLUMBING)
and (Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING - FRONT - CAUTION - A/C PLUMBING).
NOTE: The proper amount of R-134a refrigerant for
the refrigerant system in this model is:
²Single or Dual Zone (Front Unit Only)- 0.96
kilograms (2.13 pounds or 34 ounces)
²Three Zone (Front and Rear Units)- 1.31
kilograms (2.88 pounds or 46 ounces)
The procedure that follows should be used to deter-
mine whether the refrigerant system contains the
proper refrigerant charge. Symptoms of an improper
refrigerant charge (low) include: poor air conditioner
performance, fog emitted from the air conditioner
outlets, a hissing sound from the expansion valve/
evaporator area. There are two different methods
with which the refrigerant charge level may be
tested:
²Using a DRBIIItscan tool, a thermocouple and
the Charge Determination Chart (Fig. 31). Refer to
the appropriate diagnostic information.
²Using a manifold gauge set, a thermocouple and
the Charge Determination Chart (Fig. 31).
A temperature probe is required to measure liquid
line temperature. The clamp-on, Type K thermocou-
ple temperature probe used in this procedure is
available through the DaimlerChrysler Professional
Service Equipment (PSE) program. This probe (PSE
#66-324-0014 or #80PK-1A) is compatible with tem-
perature-measuring instruments that accept Type K
thermocouples, and have a miniature connector
input. Other temperature probes are available
through aftermarket sources; however, all references
in this procedure will reflect the use of the probe
made available through the PSE program.
In order to use the temperature probe, a digital
thermometer will also be required. If a digital ther-
mometer is not available, an adapter is available
through the PSE program that will convert any stan-
dard digital multimeter into a digital thermometer.
This adapter is designed to accept any standard Type
K thermocouple. If a digital multimeter is not avail-
able, this tool is also available through the PSE pro-
gram.
RSPLUMBING - FRONT24-87
RECEIVER/DRIER (Continued)

NOTE: When connecting the service equipment
couplings to the refrigerant system service ports,
be certain that the valve of each coupling is fully
closed. This will reduce the amount of effort
required to make the connection.
(1) Remove the caps from the refrigerant system
service ports and attach a manifold gauge set or a
R-134a refrigerant recovery/recycling/charging sta-
tion that meets SAE Standard J2210 to the refriger-
ant system.
(2) Attach a clamp-on thermocouple to the liquid
line. The thermocouple must be placed as close to the
A/C pressure transducer as possible to accurately
observe liquid line temperature.
(3) Bring the refrigerant system up to operating
temperature and pressure. This is done by allowing
the engine to run at idle under the following condi-
tions for five minutes.
(a) Front windows are open.
(b) Transaxle in Park.
(c) Front heater-A/C controls set to outside air,
full cool, panel mode, blower high, and compressor
engaged.
(d) If the vehicle is so equipped, the rear heater-
A/C controls must be set to full cool and blower
high.(4) Raise the liquid line (discharge) pressure to
about 1793 kPa (260 psi) by placing a piece of card-
board over part of the front side of the condenser. To
place the cardboard properly, remove the upper radi-
ator sight shield from the front fascia. Cover only
enough of the condenser to raise and maintain the
liquid line pressure at the specified level.
(5) Observe the liquid line (discharge) pressure
and liquid line temperature. Using the Charge Deter-
mination Chart (Fig. 31), determine whether the
refrigerant system is operating within the Proper
Charge Range.
(a) If the refrigerant system is operating in the
Undercharged area of the chart, add 0.057 kilo-
gram (0.125 pound or 2 ounces) of refrigerant to
the system.
(b) If the refrigerant system is operating in the
Overcharged area of the chart, reclaim 0.057 kilo-
gram (0.125 pound or 2 ounces) of refrigerant from
the system.
(6) Recheck the system charge level following each
refrigerant adjustment. Continue this process until
the system readings are in the Proper Charge Range
area on the Charge Determination Chart.
Fig. 31 Charge Determination Chart, Ambient Test Condition 85ÉF
24 - 88 PLUMBING - FRONTRS
REFRIGERANT (Continued)