Dodge RAM 1500 1998 Owner's Manual page 2559

24 - 72 PLUMBING
SUCTION LINE (Continued)
(1) Disconnect and isolate the battery negative
cable.
(2) Recover the refrigerant from the refrigerant
system (Refer to 24 - HEATING & AIR CONDITION-
ING/PLUMBING - STANDARD PROCEDURE -
REFRIGERANT RECOVERY).
(3) Remove the nut that secures the suction line
fitting to the compressor inlet port (Fig. 31) or (Fig.
32), depending on application.
(4) Disconnect the suction line from the compres-
sor.
(5) Remove the O-ring seal from the suction line
fitting and discard.
(6) Install plugs in, or tape over the suction line
fitting and compressor inlet port.
Fig. 31 A/C Discharge Line - 3.7L Shown, 4.7L
1 - NUT
2 - FRONT UPPER CROSSMEMBER
3 - A/C CONDENSER
4 - NUT (2)
5 - SUCTION LINE
6 - A/C COMPRESSOR
7 - A/C PRESSURE TRANSDUCER
8 - WIRE HARNESS CONNECTOR
9 - A/C DISCHARGE LINE
(7) Remove the secondary retaining clip from the
spring-lock coupler that secures the suction line to
the accumulator outlet tube (Fig. 33).
(8) Using the proper A/C line disconnect tool, dis-
connect the suction line from the accumulator outlet
tube (Refer to 24 - HEATING & AIR CONDITION-
ING/PLUMBING/REFRIGERANT LINE COUPLER -
REMOVAL).
(9) Remove the O-ring seal from the accumulator
outlet tube fitting and discard.
Typical
Fig. 32 A/C Suction Line - 5.7L Hemi Engine
1 - DISCHARGE LINE
2 - NUT
3 - CONDENSER
4 - NUT
5 - SUCTION LINE
6 - A/C COMPRESSOR
7 - NUT
8 - A/C PRESSURE TRANSDUCER
(10) Install plugs in, or tape over the opened suc-
tion line and the accumulator outlet tube fitting.
INSTALLATION
INSTALLATION - 5.9L DIESEL ENGINE
(1) If removed, install the A/C pressure transducer
onto the discharge line using a new O-ring seal.
Tighten the transducer securely.
(2) Position the suction/discharge line assembly
into the engine compartment.
(3) Remove the tape or plugs from the suction line
and the accumulator outlet tube fitting.
(4) Lubricate a new rubber O-ring seal with clean
refrigerant oil and install it on the accumulator out-
let tube fitting. Use only the specified O-ring 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) Connect the suction line to the accumulator
outlet tube (Refer to 24 - HEATING & AIR CONDI-
TIONING/PLUMBING/REFRIGERANT LINE COU-
PLER - INSTALLATION).
(6) Install the secondary retaining clip onto the
spring-lock coupler that secures the suction line to
the accumulator outlet tube.
DR