Dodge Nitro. Manual — part 771

Fig. 167: A/C Discharge Line, Nuts, A/C Suction Line & A/C Compressor
Courtesy of CHRYSLER LLC

8. Connect the A/C discharge line (1) to the A/C compressor (4).

9. Install the nut (2) that secures the A/C discharge line to the A/C compressor. Tighten the nut to 12 N.m

(105 in. lbs.).

10. Install the air cleaner housing (refer to INSTALLATION for 3.7L - SERVICE INFORMATION or

INSTALLATION for 4.0L - SERVICE INFORMATION ).

11. Reconnect the negative battery cable.

12. Evacuate the refrigerant system. See REFRIGERANT SYSTEM EVACUATE.

13. Adjust the refrigerant oil level. See REFRIGERANT OIL LEVEL.

14. Charge the refrigerant system. See REFRIGERANT SYSTEM CHARGE.

2.8L ENGINE

CAUTION: Be certain to adjust the refrigerant oil level when servicing the A/C

refrigerant system. See STANDARD PROCEDURE. Failure to properly
adjust the refrigerant oil level will prevent the A/C system from operating
as designed and can cause serious A/C compressor damage.

NOTE:

When replacing multiple A/C system components, refer to the Refrigerant Oil
Capacities chart to determine how much oil should be added to the refrigerant
system. See REFRIGERANT OIL LEVEL.

NOTE:

Replacement of the refrigerant line O-ring seals and gaskets is required anytime
a refrigerant line is opened. Failure to replace the rubber O-ring seals and metal
gaskets could result in a refrigerant system leak.

NOTE:

LHD model shown in illustrations. RHD model similar.

2007 Dodge Nitro R/T

2007 HVAC Heating & Air Conditioning - Service Information - Nitro

Fig. 168: Removing/Installing Nut That Secures A/C Discharge Line To A/C Condenser
Courtesy of CHRYSLER LLC

1. Remove the tape or plugs from the opened discharge line fittings and compressor and condenser ports.

2. Lubricate new rubber O-ring seals with clean refrigerant oil and install them and new gaskets onto the

discharge line fittings. 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.

3. Position the A/C discharge line (1) into the engine compartment and connect it to the A/C condenser (2).

4. Install the nut (3) that secures the A/C discharge line to the A/C condenser. Tighten the nut to 22.5 N.m

(200 in. lbs.).

5. Engage the A/C discharge line into the plastic retaining clip located on the right side of the fan shroud.

6. Install the grille. Refer to INSTALLATION .

NOTE:

Rotate and tilt the A/C discharge line as necessary to connect it from the
A/C condenser.

2007 Dodge Nitro R/T

2007 HVAC Heating & Air Conditioning - Service Information - Nitro

Fig. 169: Refrigerant Line System
Courtesy of CHRYSLER LLC

7. Connect the A/C discharge line (1) to the A/C compressor (4).

8. Install the nut (5) that secures the A/C discharge line to the A/C compressor. Tighten the nut to 12 N.m

(105 in. lbs.).

9. Install the battery. Refer to INSTALLATION .

10. Install the air inlet tube to the throttle body. Tighten the clamp securely.

11. Install the air cleaner housing. Refer to INSTALLATION .

12. Reconnect the negative battery cable.

13. Evacuate the refrigerant system. See REFRIGERANT SYSTEM EVACUATE.

14. Adjust the refrigerant oil level. See REFRIGERANT OIL LEVEL.

15. Charge the refrigerant system. See REFRIGERANT SYSTEM CHARGE.

LINE-A/C LIQUID

DESCRIPTION

LINE-A/C LIQUID

Fig. 170: A/C Liquid Line, High-Side Service Port, A/C Pressure Transducer & Condenser Outlet Tube
Connection
Courtesy of CHRYSLER LLC

The A/C liquid line (1) is the refrigerant line that carries refrigerant from the A/C condenser to the A/C
expansion valve. The A/C liquid line contains the high-side service port (2), a fitting for the A/C pressure
transducer (3) and uses a spring lock coupler at the condenser outlet tube connection (4). On LHD models, the
A/C liquid line is serviced only as an assembly. On RHD models, the A/C liquid line is serviced in two sections
and uses a spring lock coupler to connect the two sections together.

NOTE:

LHD model shown. RHD model similar.

2007 Dodge Nitro R/T

2007 HVAC Heating & Air Conditioning - Service Information - Nitro

The A/C liquid line has no serviceable parts except for the rubber O-ring seals, high-side service port valve and
its protective cap and the plastic retainer clips. 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 A/C
liquid line is removed and installed.

The A/C liquid line cannot be repaired and must be replaced if leaking or damaged.

REMOVAL

RHD MODEL

FRONT SECTION

Fig. 171: A/C Liquid Line & Condenser Tube
Courtesy of CHRYSLER LLC

1. Disconnect and isolate the negative battery cable.

2. Recover the refrigerant from the refrigerant system. See STANDARD PROCEDURE.

3. Remove the air cleaner housing (refer to REMOVAL for 3.7L - SERVICE INFORMATION or

REMOVAL for 4.0L - SERVICE INFORMATION ).

4. Remove the secondary retaining clip and using the proper A/C line disconnect tool, disconnect the A/C

liquid line (1) from the condenser tube (2). See REMOVAL.

NOTE:

Replacement of the refrigerant line O-ring seals and gaskets is required anytime
a refrigerant line is opened. Failure to replace the rubber O-ring seals and metal
gaskets could result in a refrigerant system leak.

WARNING:

Refer to the applicable warnings and cautions for this system before
performing the following operation. See WARNING, and CAUTION. Failure
to follow the warnings and cautions could result in possible personal
injury or death.

2007 Dodge Nitro R/T

2007 HVAC Heating & Air Conditioning - Service Information - Nitro