Dodge Ram Truck 1500-2500-3500. Manual — part 2080

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 bolt (5) that secures the A/C suction

line (1) to the A/C compressor (2).

4. Disconnect the A/C suction line from the A/C com-

pressor.

5. Remove the seal and gasket from the suction line

fitting and discard.

6. Install plugs in, or tape over the opened suction

line fitting and the compressor inlet port.

7. Remove the A/C suction line (5) from the refriger-

ant line retainer clips (2) located at the top of the
fan shroud (1).

8. Remove the air filter housing cover (Refer to 9 -

ENGINE/AIR

INTAKE

SYSTEM/AIR

FILTER

HOUSING - REMOVAL).

24 - 320

PLUMBING

DR/DH

9. Remove the secondary retaining clip (7) from the

spring-lock coupler (1) that secures the A/C suction
line (6) to the accumulator (5).

10. Using the proper A/C line disconnect tool, discon-

nect the A/C suction line from the A/C accumula-
tor

(Refer

to

24

-

HEATING

&

AIR

CONDITIONING/PLUMBING/COUPLER-REFRIG-
ERANT LINE - REMOVAL).

11. Remove the O-ring seals from the accumulator

tube fitting and discard the seals.

12. Install plugs in, or tape over the opened suction

line fitting and the accumulator outlet tube.

13. Remove the A/C suction line from the engine

compartment.

INSTALLATION

3.7L/4.7L ENGINES

1. Position the A/C suction line (5) into the engine

compartment.

2. Remove the tape or plugs from the opened fitting

on the A/C suction line and the inlet port on the
A/C compressor (6).

3. Lubricate a new seal with clean refrigerant oil and

install it onto the suction 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.

4. Install the A/C suction line onto the A/C compres-

sor.

5. Install the nut (4) that secures the A/C discharge

line to the A/C compressor. Tighten the nut to 20
N·m (15 ft. lbs.).

DR/DH

PLUMBING

24 - 321

6. Remove the tape or plugs from the opened suction

line fitting and the accumulator outlet tube.

7. Lubricate new rubber O-ring seals with clean refrig-

erant oil and install them onto the accumulator tube
fitting. Use only the specified O-rings as they are
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 A/C suction line (6) to the spring-lock

coupler (1) on the accumulator (5) and install the
secondary retaining clip (7) (Refer to 24 - HEAT-
ING

&

AIR

CONDITIONING/PLUMBING/COU-

PLER-REFRIGERANT LINE - INSTALLATION).

9. Install the air filter housing cover (Refer to 9 -

ENGINE/AIR

INTAKE

SYSTEM/AIR

FILTER

HOUSING - INSTALLATION).

10. Reconnect the negative battery cable.

11. Evacuate the refrigerant system (Refer to 24 -

HEATING & AIR CONDITIONING/PLUMBING - STANDARD PROCEDURE - REFRIGERANT SYSTEM EVAC-
UATE).

12. Charge the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD PRO-

CEDURE - REFRIGERANT SYSTEM CHARGE).

5.7L ENGINE

1. Position the A/C suction line (5) into the engine

compartment.

2. Remove the tape or plugs from the opened fitting

on the A/C suction line and the inlet port on the
A/C compressor (6).

3. Lubricate a new seal with clean refrigerant oil and

install it onto the suction 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.

4. Install the A/C suction line onto the A/C compres-

sor.

5. Install the nut (4) that secures the A/C discharge

line to the A/C compressor. Tighten the nut to 20
N·m (15 ft. lbs.).

24 - 322

PLUMBING

DR/DH

6. Remove the tape or plugs from the opened suction

line fitting and the accumulator outlet tube.

7. Lubricate new rubber O-ring seals with clean refrig-

erant oil and install them onto the accumulator tube
fitting. Use only the specified O-rings as they are
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 A/C suction line (6) to the spring-lock

coupler (1) on the accumulator (5) and install the
secondary retaining clip (7) (Refer to 24 - HEAT-
ING

&

AIR

CONDITIONING/PLUMBING/COU-

PLER-REFRIGERANT LINE - INSTALLATION).

9. Install the air filter housing cover (Refer to 9 -

ENGINE/AIR

INTAKE

SYSTEM/AIR

FILTER

HOUSING - INSTALLATION).

10. Reconnect the negative battery cable.

11. Evacuate the refrigerant system (Refer to 24 -

HEATING & AIR CONDITIONING/PLUMBING - STANDARD PROCEDURE - REFRIGERANT SYSTEM EVAC-
UATE).

12. Charge the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD PRO-

CEDURE - REFRIGERANT SYSTEM CHARGE).

5.9L DIESEL ENGINE

NOTE: The A/C suction line for the 5.9L Diesel engine is serviced as an assembly with the discharge line.

1. If removed, install the A/C pressure transducer onto

the A/C discharge line (Refer to 24 - HEATING &
AIR CONDITIONING/CONTROLS/TRANSDUCER-
A/C PRESSURE - INSTALLATION).

2. Position the A/C suction and discharge line assem-

bly (8) into the engine compartment.

3. Remove the tape or plugs from the opened dis-

charge line fitting and the inlet port on the A/C con-
denser (1).

4. Lubricate a new seal with clean refrigerant oil and

install it onto the discharge 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.

5. Install the A/C discharge line onto the A/C con-

denser.

6. Install the nut (2) that secures the A/C discharge

line to the A/C condenser. Tighten the nut to 20
N·m (15 ft. lbs.).

7. Remove the tape or plugs from the opened A/C

suction and discharge line fittings and the compressor ports.

8. Lubricate new seals with clean refrigerant oil and install them onto the refrigerant line fittings. Use only the spec-

ified seals as they are 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.

9. Install the A/C suction and discharge line assembly onto the A/C compressor (6).

DR/DH

PLUMBING

24 - 323