DODGE RAM SRT-10 2006 Service Repair Manual

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 accessory drive belt (Refer to 7 -
COOLING/ACCESSORY DRIVE/BELTS-DRIVE -
REMOVAL).
4. Disconnect the wire harness connector from the
A/C compressor clutch coil connector (4).
5. Remove the bolts (5) that secure the A/C suction
line (1) and the A/C discharge line (3) to the A/C
compressor (2).
6. Disconnect the refrigerant lines from the A/C com-
pressor and remove and discard the seals.
7. Install plugs in, or tape over all of the opened
refrigerant line fittings and the compressor ports.
8. Remove the four bolts (1) that secure the A/C com-
pressor (2) to the cylinder block (3).
9. Remove the A/C compressor from the engine
compartment.
INSTALLATION
3.7L/4.7L ENGINES
NOTE: If a replacement A/C compressor is being installed, be certain to check the refrigerant oil level. See
Refrigerant Oil Level in this group for the procedures. Use only refrigerant oil of the type recommended for
the compressor in the vehicle.

1. Position the A/C compressor (2) onto the accessory
mounting bracket (4).
2. Install and tighten the bolts in the following
sequence:
Install bolt (3) and hand tighten.
Install bolt (6) and hand tighten.
Install bolt (1) and hand tighten.
Tightened bolt (3) to 40 Nꞏm (30 ft. lbs.).
Tightened bolt (6) to 55 Nꞏm (41 ft. lbs.).
Tightened bolt (1) to 55 Nꞏm (41 ft. lbs.).
Tightened bolt (5) to 55 Nꞏm (41 ft. lbs.).
3. Remove the tape or plugs from the opened refrig-
erant line fittings and the compressor ports.
4. Lubricate new seals with clean refrigerant oil and
install them onto the refrigerant line fittings. Use
only the specified seals as they are made of a spe-
cial 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 suction line (5) and the A/C dis-
charge line (9) onto the A/C compressor (6).
6. Install the nuts (4) that secure the refrigerant lines
to the A/C compressor. Tighten the nuts to 20 Nꞏm
(15 ft. lbs.).
7. Install the accessory drive belt (Refer to 7 - COOL-
ING/ACCESSORY DRIVE/BELTS-DRIVE - INSTAL-
LATION).
8. Reconnect the negative battery cable.
9. Evacuate the refrigerant system (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING -
STANDARD PROCEDURE - REFRIGERANT SYS-
TEM EVACUATE).
10. Charge the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD PRO-
CEDURE - REFRIGERANT SYSTEM CHARGE).
5.7L ENGINE
NOTE: Be certain to check the refrigerant oil level if the A/C compressor isbeing replaced. See Refrigerant
Oil Level in this group for the procedures. Use only refrigerant oil of the type recommended for the A/C
compressor in the vehicle.

1. Position the A/C compressor (2) into the engine
compartment.
2. Install and tighten the bolts that secure the A/C
compressor to the mounting bracket (4) in the fol-
lowing sequence:
Install the two lower bolts (1) and hand tighten.
Install the rear bolt (3) and hand tighten.
Tightenthetwolowerboltsto40Nꞏm(30ft.
lbs.).
Tighten the rear bolt to 55 Nꞏm (41 ft. lbs.).
3. Install the generator support bracket (Refer to 8 -
ELECTRICAL/CHARGING/GENERATOR -
INSTALLATION).
4. Remove the tape or plugs from the opened refrig-
erant line fittings and the compressor ports.
5. Lubricate new O-rings and dual plane seals with
clean refrigerant oil and install them onto the refrig-
erant line fittings. 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 recom-
mended for the A/C compressor in the vehicle.
6. Install the A/C discharge line (1) and the A/C suc-
tion line (5) onto the A/C compressor (6).
7. Install the nuts (4 and 7) that secure the refrigerant
lines to the A/C compressor. Tighten the nuts to 20
Nꞏm (15 ft. lbs.).
8. Connect the wire harness connector to the clutch
field coil connector and the A/C pressure trans-
ducer (8).
9. Install the accessory drive belt (Refer to 7 - COOL-
ING/ACCESSORY DRIVE/BELTS-DRIVE - INSTAL-
LATION).
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: Be certain to check the refrigerant oil level if the A/C compressor isbeing replaced. See Refrigerant
Oil Level in this group for the procedures. Use only refrigerant oil of the type recommended for the A/C
compressor in the vehicle.

1. Position the A/C compressor (2) onto the mounting
bracket (3) located on the right side of the cylinder
block (4).
2. Install and hand tighten the four bolts (1) that
secure the A/C compressor to the mounting
bracket.
3. Tighten the bolts that secure the A/C compressor to
themountingbracketto23Nꞏm(17ft.lbs.).
4. Remove the tape or plugs from the opened refrig-
erant line fittings and the compressor ports.
5. Lubricate new seals with clean refrigerant oil and
install them onto the refrigerant line fittings. Use
only the specified seals as they are made of a spe-
cial material for the R-134a system. Use only
refrigerant oil of the type recommended for the A/C
compressor in the vehicle.
6. Install the A/C suction and discharge line assembly
(2) onto the A/C compressor (3).
7. Install the bolt (1) that secures the refrigerant line
assembly to the A/C compressor. Tighten the bolt
to 23 Nꞏm (17 ft. lbs.).
8. Connect the wire harness to the clutch field coil
wire lead connector (4).
9. Install the accessory drive belt (Refer to 7 - COOL-
ING/ACCESSORY DRIVE/BELTS-DRIVE - INSTAL-
LATION).
10. Reconnect the negative battery cable.
11. Evacuate the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD
PROCEDURE - REFRIGERANT SYSTEM EVACUATE).
12. Charge the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD PRO-
CEDURE - REFRIGERANT SYSTEM CHARGE).
8.3L ENGINE
NOTE: Be certain to check the refrigerant oil level if the A/C compressor isbeing replaced. See Refrigerant
Oil Level in this group for the procedures. Use only refrigerant oil of the type recommended for the A/C
compressor in the vehicle.

1. Position the A/C compressor (2) into the engine
compartment.
2. Install and hand tighten the four bolts (1) that
secure the A/C compressor to the cylinder block
(3).
3. Tighten the bolts that secure the A/C compressor to
the cylinder block to 23 Nꞏm (17 ft. lbs.).
4. Remove the tape or plugs from the opened refrig-
erant line fittings and the compressor ports.
5. Lubricate new seals with clean refrigerant oil and
install them onto the refrigerant line fittings. Use
only the specified seals as they are made of a spe-
cial material for the R-134a system. Use only
refrigerant oil of the type recommended for the A/C
compressor in the vehicle.
6. Install the A/C suction line (1) and the A/C dis-
charge line (3) onto the A/C compressor (2).
7. Install the bolts (5) that secure the refrigerant lines
to the A/C compressor. Tighten the bolts to 20 Nꞏm
(15 ft. lbs.).
8. Connect the wire harness connector to the A/C
compressor clutch coil connector (4).
9. Install the accessory drive belt (Refer to 7 - COOL-
ING/ACCESSORY DRIVE/BELTS-DRIVE - INSTAL-
LATION).
10. Reconnect the negative battery cable.
11. Evacuate the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD
PROCEDURE - REFRIGERANT SYSTEM EVACUATE).
12. Charge the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD PRO-
CEDURE - REFRIGERANT SYSTEM CHARGE).

CONDENSER-A/C
DESCRIPTION
The A/C condenser is located in the front of the engine compartment behind the grille. The A/C condenser is a heat
exchanger that allows the high-pressure refrigerant gas being dischargedbytheA/Ccompressortogiveupitsheat
to the air passing over the condenser fins, which causes the refrigerant tocool and change to a liquid state.
OPERATION
When air passes through the fins of the A/C condenser, the high-pressure refrigerant gas within the A/C condenser
gives up its heat. The refrigerant then condenses as it leaves the A/C condenser and becomes a high-pressure
liquid. The volume of air flowing over the condenser fins is critical to theproper cooling performance of the A/C
system. Therefore, it is important that there are no objects placed in front of the radiator grille openings at the front
of the vehicle or foreign material on the condenser fins that might obstruct proper air flow. Also, any factory-installed
air seals or shrouds must be properly reinstalled following radiator or A/C condenser service.
The A/C condenser cannot be repaired and, if faulty or damaged, it must be replaced.
REMOVAL
3.7L/4.7L/5.7L 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. Disconnect the A/C discharge line and the A/C liq-
uidlinefromtheA/Ccondenser(Referto24-
HEATING & AIR CONDITIONING/PLUMBING/
LINE-A/C DISCHARGE - REMOVAL) and (Refer to
24 - HEATING & AIR CONDITIONING/PLUMBING/
LINE-A/C LIQUID - REMOVAL).
4. Disconnect the wire harness connector (8) from the
A/C condenser cooling fan motor (7).
5. Remove the two bolts (1 and 9) that secure the
A/C condenser to the front upper crossmember (2).
6. Carefully lift the A/C condenser and cooling fan assembly to disconnectthe lower mounting tabs (6) from the
lower mounting flanges (3) and remove the assembly from the engine compartment.
7. If required, place the A/C condenser and the cooling fan assembly on a workbench and remove the four screws
(4 and 5) that secure the cooling fan to the A/C condenser and separate the fan from the condenser.
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: Illustration shown with air seal removed for
clarity.
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 seal from the front passenger side
of the A/C condenser (5) to gain access to the
refrigerant line fittings.
4. Disconnect the A/C discharge line (1) and the A/C
liquid line (3) from the A/C condenser (5) (Refer to
24 - HEATING & AIR CONDITIONING/PLUMBING/
LINE-A/C LIQUID - REMOVAL) and (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING/
LINE-A/C DISCHARGE - REMOVAL).
5. Remove the four bolts (2, 4, 6 and 7) that secure
the A/C condenser to the charge air cooler.
6. Remove the A/C condenser 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.
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. Disconnect the A/C discharge line and the A/C liq-
uidlinefromtheA/Ccondenser(Referto24-
HEATING & AIR CONDITIONING/PLUMBING/
LINE-A/C LIQUID - REMOVAL) and (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING/
LINE-A/C DISCHARGE - REMOVAL).
4. Remove the two bolts (1) that secure the A/C con-
denser (4) to the upper radiator support (2).
5. Carefully lift the A/C condenser off of the front
bumper support (3) and remove the condenser
from the engine compartment.

INSTALLATION
3.7L/4.7L/5.7L ENGINES
NOTE: If the A/C condenser is being replaced, add 30 milliliters (1 fluid ounce) of refrigerant oil to the refrig-
erant system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
1. If removed, install the condenser cooling fan onto
the A/C condenser.
2. Install the four screws (4 and 5) that secure the
cooling fan to the A/C condenser. Tighten the
screws to 2.2 Nꞏm (20 in. lbs.).
3. Position the A/C condenser and cooling fan assem-
bly into the engine compartment.
4. Install the lower mounting tabs (6) into the lower
mounting flanges (3).
5. Install the two bolts (1 and 9) that secure the A/C
condenser to the upper front crossmember (2).
Tighten the bolts to 10.5 Nꞏm (95 in. lbs.).
6. Connect the wire harness connector (8) to the A/C
condenser cooling fan motor (7).
7. Connect the A/C discharge line and the A/C liquid
line onto the A/C condenser (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING/LINE-A/C DISCHARGE
- INSTALLATION) and (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING/LINE-A/C LIQUID - INSTAL-
LATION).
8. Reconnect the negative battery cable.
9. Evacuate the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD PRO-
CEDURE - REFRIGERANT SYSTEM EVACUATE).
10. Charge the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD PRO-
CEDURE - REFRIGERANT SYSTEM CHARGE).
5.9L DIESEL ENGINE
NOTE: If the A/C condenser is being replaced, add 30 milliliters (1 fluid ounce) of refrigerant oil to the refrig-
erant system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.

NOTE: Illustration shown with air seal removed for
clarity.
1. Position the A/C condenser (5) into the engine
compartment.
2. Install the four bolts (2, 4, 6 and 7) that secure the
A/C condenser to the charge air cooler. Tighten the
bolts to 10.5 Nꞏm (95 in. lbs.).
3. Remove the tape or plugs from the liquid line fitting
and condenser outlet port.
4. Lubricate a new rubber O-ring seal with clean
refrigerant oil and install it on the liquid line fitting.
UseonlythespecifiedO-ringasitismadeofa
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 A/C discharge line (1) and the A/C liq-
uid line (3) onto the A/C condenser (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING/
LINE-A/C DISCHARGE - INSTALLATION) and
(Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING/LINE-A/C LIQUID - INSTALLATION).
6. Position the air seal over the front passenger side
of the A/C condenser and install the air seal retain-
ers.
7. Reconnect the negative battery cable.
8. Evacuate the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD PRO-
CEDURE - REFRIGERANT SYSTEM EVACUATE).
9. Charge the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD PRO-
CEDURE - REFRIGERANT SYSTEM CHARGE).
8.3L ENGINE
NOTE: If the A/C condenser is being replaced, add 30 milliliters (1 fluid ounce) of refrigerant oil to the refrig-
erant system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
NOTE: Be certain that each of the radiator and condenser air seals are reinstalled in their proper locations.
These air seals are required for the A/C and engine cooling systems to perform as designed.

1. Position the A/C condenser (4) into the engine
compartment and install the condenser onto the
front bumper support (3).
2. Install the two bolts (1) that secure the A/C con-
denser to the upper radiator support (2). Tighten
the bolts to 10.5 Nꞏm (95 in. lbs.).
3. Connect the A/C discharge line and the A/C liquid
line onto the A/C condenser(Referto24-HEAT-
ING & AIR CONDITIONING/PLUMBING/LINE-A/C
DISCHARGE - INSTALLATION) and (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING/
LINE-A/C LIQUID - INSTALLATION).
4. Reconnect the negative battery cable.
5. Evacuate the refrigerant system (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING -
STANDARD PROCEDURE - REFRIGERANT SYS-
TEM EVACUATE).
6. Charge the refrigerant system (Refer to 24 - HEAT-
ING & AIR CONDITIONING/PLUMBING - STANDARD PROCEDURE - REFRIGERANT SYSTEM CHARGE).