DODGE RAM SRT-10 2006 Service Repair Manual

LINE-A/C LIQUID
DESCRIPTION
The liquid line is the refrigerant line that carries refrigerant from the A/C condenser to the A/C evaporator. The liquid
line for this model consist of two separate lines that connect to each otherusing a spring-lock type refrigerant line
coupler (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING/REFRIGERANT LINE COUPLER - DESCRIP-
TION). The liquid lines are made from light-weight aluminum, and use braze-less fittings.
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.
CAUTION: Use only O-ring seals specified for the vehicle. Failure to use the correct O-ring seal will cause
the refrigerant system connections to leak.
The liquid line has no serviceable parts except for the rubber O-ring seals, high-side service port valve, cap and
secondary retaining clip. 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 whenever the liquid line is removed and installed.
If the liquid line is found to be leaking or is damaged, it must be replaced.
REMOVAL
3.7L/4.7L/5.7L/5.9L ENGINES
WARNING: Refer to the applicable warnings and cautions for this system before performing the following
operation (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - WARNINGS) and (Refer to 24 - HEAT-
ING & AIR CONDITIONING/PLUMBING - CAUTIONS). Failure to follow the warnings and cautions could result
in possible personal injury or death.
NOTE:TheA/Cliquidlineisservicedintwosections.
FRONT 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. If equipped with the diesel engine, remove the pas-
senger side battery (Refer to 8 - ELECTRICAL/
BATTERY SYSTEM/BATTERY - REMOVAL).
4. If equipped with a gasoline engine, remove the air
filter housing and mounting bracket (Refer to 9 -
ENGINE/AIR INTAKE SYSTEM/AIR FILTER
HOUSING - REMOVAL).
5. Remove the plastic cover from the condenser out-
let stud.
6. Remove the nut (8) that secures the front section
of the A/C liquid line (10) to the A/C condenser (7).
7. Disconnect the A/C liquid line from the A/C con-
denser and remove and discard the O-ring and
dual plane seal.
8. Disengage the A/C liquid line from the body retain-
ing clips (1 and 9).
9. Remove the secondary retaining clip (2) from the spring-lock coupler that secures the front section of the A/C
liquid line to the rear section of the liquid line (4).

10. Using the proper A/C line disconnect tool, disconnect the front section of the A/C liquid line from the rear sec-
tion of the liquid line and remove and discard the O-ring seals (Refer to 24 -HEATING & AIR CONDITIONING/
PLUMBING/COUPLER-REFRIGERANT LINE - REMOVAL).
11. Install plugs in, or tape over the opened ends of the A/C liquid lines andthe condenser outlet port.
12. Remove the front section of the A/C liquid line from the engine compartment.
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. If equipped with the diesel engine, remove the pas-
senger side battery (Refer to 8 - ELECTRICAL/
BATTERY SYSTEM/BATTERY - REMOVAL).
4. If equipped with a gasoline engine, remove the air
filter housing and mounting bracket (Refer to 9 -
ENGINE/AIR INTAKE SYSTEM/AIR FILTER
HOUSING - REMOVAL).
5. Disengage the rear section of the A/C liquid line (4)
from the body retaining clip (3).
6. Remove the secondary retaining clip (2) from the
spring-lock coupler that secures the front section of
the A/C liquid line (10) to the rear section of the liq-
uid line.
7. 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 CONDITIONING/PLUMBING/COUPLER-REFRIGERANT LINE -
REMOVAL).
8. Remove the secondary retaining clip (5) from the spring-lock coupler that secures the rear section of the A/C
liquid line to the evaporator inlet tube (6).
9. Using the proper A/C line disconnect tool, disconnect the A/C liquid line from the evaporator inlet tube and
removeanddiscardtheO-ringseals(Referto24-HEATING&AIRCONDITIONING/PLUMBING/COUPLER-
REFRIGERANT LINE - REMOVAL).
10. Install plugs in, or tape over the opened ends of the A/C liquid lines andthe evaporator inlet port.
11. Remove the rear section of the A/C liquid line from the engine compartment.
8.3L ENGINE
WARNING: Refer to the applicable warnings and cautions for this system before performing the following
operation (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - WARNINGS) and (Refer to 24 - HEAT-
ING & AIR CONDITIONING/PLUMBING - CAUTIONS). Failure to follow the warnings and cautions could result
in possible personal injury or death.
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 orificetube.

FRONT 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.Removetheairfilterhousing(Referto9-
ENGINE/AIR INTAKE SYSTEM/AIR FILTER
HOUSING - REMOVAL).
4. Remove the plastic cover from the condenser out-
let stud.
5. Remove the nut (3) that secures the front section
of the A/C liquid line (4) to the A/C condenser (6).
6. Disconnect the A/C liquid line from the A/C con-
denser and remove and discard the seal and gas-
ket.
7. Disengage the A/C liquid line from the body retain-
ing clips.
8. Remove the secondary retaining clip from the
spring-lock coupler (5) that secures the front section of the A/C liquid line to the rear section of the liquid line.
9. Using the proper A/C line disconnect tool, disconnect the front sectionof the A/C liquid line from the rear section
of the liquid line and remove and discard the seal (Refer to 24 - HEATING & AIRCONDITIONING/PLUMBING/
COUPLER-REFRIGERANT LINE - REMOVAL).
10. Install plugs in, or tape over the opened ends of the A/C liquid lines andthe condenser outlet port.
11. Remove the front section of the A/C liquid line from the engine compartment.
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.Removetheairfilterhousing(Referto9-
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-
cardtheseal(Referto24-HEATING&AIRCON-
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:TheA/Cliquidlineisservicedintwosections.
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 new O-ring seals with clean refrigerant oil
and install them onto the front liquid line spring-lock
coupler fitting. Use only the specified seals as they
are made of a special material for the R-134a sys-
tem. Use only refrigerant oil of the type recom-
mended 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 O-ring and dual plane seal with clean refrigerant oil andinstall them onto the front liquid line
fitting. Use only the specified seals as they are made of a special materialfor 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 Nꞏm (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 mounting bracket and 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 batterytray (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).

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 new O-ring seals with clean refrigerant oil
and install them onto the rear liquid line spring-lock
coupler fitting. Use only the specified seas as they
are made of a special material for the R-134a sys-
tem. Use only refrigerant oil of the type recom-
mended 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 new O-ring seals with clean refrigerant oil
and install them onto the front liquid line spring-lock coupler fitting. Use only the specified 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.
8. Connect the rear section of the A/C liquid line to the front section of theliquid 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 mounting bracket and 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 batterytray (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 orificetube.

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
rearsectionoftheliquidline(Referto24-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 20 Nꞏm (15 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).

REAR SECTION
1. Position the rear section of the A/C liquid line (3)
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
(7).
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 to the
evaporator inlet tube (Refer to 24 - HEATING &
AIR CONDITIONING/PLUMBING/COUPLER-RE-
FRIGERANT LINE - INSTALLATION).
5. Install the secondary retaining clip (6) onto the
spring-lock coupler that secures the rear section of
the A/C liquid to the evaporator inlet tube.
6. Engage the A/C liquid line into the body retaining clips.
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 to the front section of the liquid line (1) (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
to the rear section of the liquid line.
10. Install the air filter housing (Refer to 9 - ENGINE/AIR INTAKE SYSTEM/AIR FILTER HOUSING - INSTALLA-
TION).
11. Reconnect the negative battery cable.
12. Evacuate the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD
PROCEDURE - REFRIGERANT SYSTEM EVACUATE).
13. Charge the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD PRO-
CEDURE - REFRIGERANT SYSTEM CHARGE).

LINE-A/C SUCTION
DESCRIPTION
The A/C suction line is the refrigerant line that goes from the A/C evaporator to the A/C compressor.
TheA/Csuctionlineforthe5.9LDieselengineisservicedasanassemblywith the discharge line.
The A/C discharge line for the 8.3L engine is secured to the top of fan shroudby two retainers.
CAUTION: Use only O-ring seals specified for the vehicle. Failure to use the correct O-ring seal will cause
the refrigerant system connections to leak.
The A/C suction line has no serviceable parts except for the rubber O-ring seals and the secondary retaining clip.
The O-ring seals used on the connections are made from a special type of rubber not affected by R-134a refriger-
ant. The O-ring seals must be replaced whenever the A/C suction line is removed and installed.
If the A/C suction line is found to be leaking or is damaged, it must be replaced.
REMOVAL
3.7L/4.7L ENGINES
WARNING: Refer to the applicable warnings and cautions for this system before performing the following
operation (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - WARNINGS) and (Refer to 24 - HEAT-
ING & AIR CONDITIONING/PLUMBING - CAUTIONS). Failure to follow the warnings and cautions could result
in possible personal injury or death.
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 cover (Refer to 9 -
ENGINE/AIR INTAKE SYSTEM/AIR FILTER
HOUSING - REMOVAL).
4. Remove the nut (4) that secures the A/C suction
line (5) to the A/C compressor (6).
5. Disconnect the A/C suction line from the A/C com-
pressor and remove and discard the seal.
6. Install plugs in, or tape over the opened refrigerant
line fitting and the compressor port.

7. Remove the secondary retaining clip (7) from the
spring-lock coupler (1) that secures the A/C suction
line (6) to the accumulator (5).
8. Using the proper A/C line disconnect tool, discon-
nect the A/C suction line from the A/C accumulator
(Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING/COUPLER-REFRIGERANT LINE -
REMOVAL).
9. Remove the O-ring seals from the accumulator
tube fitting and discard the seals.
10. Install plugs in, or tape over the opened suction
line fitting and the accumulator outlet tube.
11. Remove the A/C suction line from the engine
compartment.
5.7L ENGINE
WARNING: Refer to the applicable warnings and cautions for this system before performing the following
operation (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - WARNINGS) and (Refer to 24 - HEAT-
ING & AIR CONDITIONING/PLUMBING - CAUTIONS). Failure to follow the warnings and cautions could result
in possible personal injury or death.
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.Removetheairfilterhousing(Referto9-
ENGINE/AIR INTAKE SYSTEM/AIR FILTER
HOUSING - REMOVAL).
4. Remove the nut (4) that secures the A/C suction
line (5) to the A/C compressor (6).
5. Disconnect the A/C suction line from the A/C com-
pressor and remove and discard the O-ring and
dual plane seal.
6. Install plugs in, or tape over the opened refrigerant
line fitting and the compressor port.

7. Remove the secondary retaining clip (7) from the
spring-lock coupler (1) that secures the A/C suction
line (6) to the A/C accumulator (5).
8. Using the proper A/C line disconnect tool, discon-
nect the A/C suction line from the A/C accumulator
and remove and discard the O-ring seals (Refer to
24 - HEATING & AIR CONDITIONING/PLUMBING/
COUPLER-REFRIGERANT LINE - REMOVAL).
9. Install plugs in, or tape over the opened suction
line fitting and the accumulator outlet tube.
10. Remove the A/C suction line from the engine
compartment.
5.9L DIESEL ENGINE
WARNING: Refer to the applicable warnings and cautions for this system before performing the following
operation (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - WARNINGS) and (Refer to 24 - HEAT-
ING & AIR CONDITIONING/PLUMBING - CAUTIONS). Failure to follow the warnings and cautions could result
in possible personal injury or death.
NOTE: The A/C suction line for the 5.9L Diesel engine is serviced as an assembly with the discharge line.
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 cover (Refer to 9 -
ENGINE/AIR INTAKE SYSTEM).
4. Remove the secondary retaining clip (7) from the
spring-lock coupler (1) thatsecures the suction line
(6) to the A/C accumulator (5).
5. Using the proper A/C line disconnect tool, discon-
nect the suction line from the A/C accumulator and
remove and discard the seals (Refer to 24 - HEAT-
ING & AIR CONDITIONING/PLUMBING/COU-
PLER-REFRIGERANT LINE - REMOVAL).
6. Install plugs in, or tape over the opened accumula-
tor tube fitting.