Dodge Ram Truck 1500-2500-3500. Manual — part 2078
REAR SECTION
1. Recover the refrigerant from the refrigerant system
(Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING
-
STANDARD
PROCEDURE
-
REFRIGERANT SYSTEM RECOVERY).
2. Disconnect and isolate the negative battery cable.
3. Remove the air filter housing (Refer to 9 -
ENGINE/AIR
INTAKE
SYSTEM/AIR
FILTER
HOUSING - REMOVAL).
4. Remove the secondary retaining clip (2) from the
spring-lock coupler that secures the front section of
the A/C liquid line (1) to the rear section of the liq-
uid line (3).
5. Disengage the A/C liquid line from the body retain-
ing clips.
6. Using the proper A/C line disconnect tool, discon-
nect the front section of the A/C liquid line from the
rear section of the liquid line and remove and dis-
card the seal (Refer to 24 - HEATING & AIR CON-
DITIONING/PLUMBING/COUPLER-REFRIGERANT LINE - REMOVAL).
7. Remove the secondary retaining clip (6) from the spring-lock coupler that secures the rear section of the A/C
liquid line to the evaporator inlet tube (7).
8. Using the proper A/C line disconnect tool, disconnect the A/C liquid line from the evaporator inlet tube and
remove and discard the seal (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING/COUPLER-REFRIG-
ERANT LINE - REMOVAL).
9. Install plugs in, or tape over the opened ends of the A/C liquid lines and the evaporator inlet port.
10. Remove the rear section of the A/C liquid line from the engine compartment.
INSTALLATION
3.7L/4.7L/5.7L/5.9L ENGINES
NOTE: The A/C liquid line is serviced in two sections.
24 - 312
PLUMBING
DR/DH
FRONT SECTION
1. Position the front section of the A/C liquid line (10)
into the engine compartment.
2. Remove the tape or plugs from the opened ends of
the A/C liquid lines and the condenser outlet port.
3. Lubricate a new seal with clean refrigerant oil and
install it onto the front liquid line spring-lock coupler
fitting. Use only the specified seal as it is made of
a special material for the R-134a system. Use only
refrigerant oil of the type recommended for the A/C
compressor in the vehicle.
4. Connect the front section of the A/C liquid line to
the rear section of the liquid line (4) (Refer to 24 -
HEATING
&
AIR
CONDITIONING/PLUMBING/
COUPLER-REFRIGERANT
LINE
-
INSTALLA-
TION).
5. Install the secondary retaining clip (2) onto the
spring-lock coupler that secures the front section of
the A/C liquid line onto the rear section of the liquid
line.
6. Engage the A/C liquid line into the body retaining
clips (1 and 9).
7. Lubricate a new seal with clean refrigerant oil and install it on the front liquid line fitting. Use only the specified
seal as it is made of a special material for the R-134a system. Use only refrigerant oil of the type recommended
for the A/C compressor in the vehicle.
8. Connect the front section of the A/C liquid line to the outlet port of the A/C condenser (7).
9. Install the nut (8) that secures the A/C liquid line to the A/C condenser. Tighten the nut to 20 N·m (15 ft. lbs.).
10. Install the plastic cover onto the condenser outlet stud.
11. If equipped with a gasoline engine, install the air filter housing (Refer to 9 - ENGINE/AIR INTAKE SYSTEM/AIR
FILTER HOUSING - INSTALLATION).
12. If equipped with the diesel engine, install the passenger side battery tray (Refer to 8 - ELECTRICAL/BATTERY
SYSTEM/TRAY - INSTALLATION).
13. Reconnect the negative battery cable(s).
14. Evacuate the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD
PROCEDURE - REFRIGERANT SYSTEM EVACUATE).
15. Charge the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD PRO-
CEDURE - REFRIGERANT SYSTEM CHARGE).
DR/DH
PLUMBING
24 - 313
REAR SECTION
1. Position the rear section of the A/C liquid line (4)
into the engine compartment.
2. Remove the tape or plugs from the opened ends of
the A/C liquid lines and the evaporator inlet tube
(6).
3. Lubricate a new seal with clean refrigerant oil and
install it on the rear liquid line spring-lock coupler
fitting. Use only the specified seal as it is made of
a special material for the R-134a system. Use only
refrigerant oil of the type recommended for the A/C
compressor in the vehicle.
4. Connect the rear section of the A/C liquid line to
the evaporator inlet tube (Refer to 24 - HEATING &
AIR
CONDITIONING/PLUMBING/COUPLER-RE-
FRIGERANT LINE - INSTALLATION).
5. Install the secondary retaining clip (5) onto the
spring-lock coupler that secures the rear section of
the A/C liquid line onto the evaporator inlet tube.
6. Engage the A/C liquid line into the body retaining
clip (3).
7. Lubricate a new seal with clean refrigerant oil and
install it on the front liquid line spring-lock coupler fitting. Use only the specified seal as it is made of a special
material for the R-134a system. Use only refrigerant oil of the type recommended for the A/C compressor in the
vehicle.
8. Connect the rear section of the A/C liquid line to the front section of the liquid line (10) (Refer to 24 - HEATING
& AIR CONDITIONING/PLUMBING/COUPLER-REFRIGERANT LINE - INSTALLATION).
9. Install the secondary retaining clip (2) onto the spring-lock coupler that secures the front section of the A/C liquid
line to the rear section of the liquid line.
10. If equipped with a gasoline engine, install the air filter housing (Refer to 9 - ENGINE/AIR INTAKE SYSTEM/AIR
FILTER HOUSING - INSTALLATION).
11. If equipped with the diesel engine, install the passenger side battery tray (Refer to 8 - ELECTRICAL/BATTERY
SYSTEM/TRAY - INSTALLATION).
12. Reconnect the negative battery cable(s).
13. Evacuate the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD
PROCEDURE - REFRIGERANT SYSTEM EVACUATE).
14. Charge the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD PRO-
CEDURE - REFRIGERANT SYSTEM CHARGE).
8.3L ENGINE
NOTE: The A/C liquid line is serviced in two sections. The front half of the liquid line includes the high side
service port and the rear half of the liquid line contains the fixed orifice tube.
24 - 314
PLUMBING
DR/DH
FRONT SECTION
1. Position the front section of the A/C liquid line (4)
into the engine compartment.
2. Remove the tape or plugs from the opened ends of
the A/C liquid lines and the condenser outlet port.
3. Lubricate a new seal with clean refrigerant oil and
install it on the front liquid line spring-lock coupler
fitting (5). Use only the specified seal as it is made
of a special material for the R-134a system. Use
only refrigerant oil of the type recommended for the
A/C compressor in the vehicle.
4. Connect the front section of the A/C liquid to the
rear section of the liquid line (Refer to 24 - HEAT-
ING
&
AIR
CONDITIONING/PLUMBING/COU-
PLER-REFRIGERANT LINE - INSTALLATION).
5. Install the secondary retaining clip onto the spring-
lock coupler that secures the front section of the
A/C liquid to the rear section of the liquid line.
6. Engage the A/C liquid line into the body retaining
clips.
7. Lubricate a new seal with clean refrigerant oil and install it and a new gasket onto the front liquid line fitting. Use
only the specified seal as it is made of a special material for the R-134a system. Use only refrigerant oil of the
type recommended for the A/C compressor in the vehicle.
8. Connect the front section of the A/C liquid line to the outlet port of the A/C condenser (6).
9. Install the nut (3) that secures the A/C liquid line to the condenser outlet port. Tighten the nut to 22 N·m (16 ft.
lbs.).
10. Install the plastic cover onto the condenser outlet stud.
11. Install the air filter housing (Refer to 9 - ENGINE/AIR INTAKE SYSTEM/AIR FILTER HOUSING - INSTALLA-
TION).
12. Reconnect the negative battery cable.
13. Evacuate the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD
PROCEDURE - REFRIGERANT SYSTEM EVACUATE).
14. Charge the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD PRO-
CEDURE - REFRIGERANT SYSTEM CHARGE).
DR/DH
PLUMBING
24 - 315
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