Dodge Nitro. Manual — part 770

Fig. 162: Removing/Installing Nuts That Secure A/C Suction Line And A/C Discharge Line To A/C
Compressor
Courtesy of CHRYSLER LLC

1. Disconnect and isolate the negative battery cable.

2. Recover the refrigerant from the refrigerant system. See REFRIGERANT SYSTEM RECOVERY.

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

REMOVAL for 4.0L - SERVICE INFORMATION ).

4. Remove the nut (2) that secures the A/C discharge line (3) to the A/C compressor (4).

5. Disconnect the A/C discharge line from the A/C compressor and remove and discard the O-ring seal and

gasket.

Fig. 163: Radiator, Bolts, A/C Condenser, Nut & A/C Discharge Line
Courtesy of CHRYSLER LLC

6. Remove the grille. Refer to REMOVAL .

7. Remove the nut (4) that secures the A/C discharge line (5) to the A/C condenser (3).

2007 Dodge Nitro R/T

2007 HVAC Heating & Air Conditioning - Service Information - Nitro

8. Remove the bolt (2) that secures the A/C condenser to the right side of the radiator (1).

9. For clearance, position the A/C condenser toward the left side of the vehicle and then disconnect the A/C

discharge line from the condenser.

10. Remove and discard the O-ring seal and gasket from the discharge line fitting.

11. Remove the A/C discharge line from the engine compartment and install plugs in, or tape over the opened

discharge line fittings and the compressor and condenser ports.

INSTALLATION

3.7L ENGINE

Fig. 164: Radiator, Bolts, A/C Condenser, Nut & A/C Discharge Line
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.

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

refrigerant system. See REFRIGERANT OIL LEVEL. 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.

2007 Dodge Nitro R/T

2007 HVAC Heating & Air Conditioning - Service Information - Nitro

3. For clearance, position the A/C condenser (3) toward the left side of the vehicle.

4. Connect the A/C discharge line (5) to the A/C condenser and install the retaining nut (4) hand tight.

5. Reposition the A/C condenser and install the bolt (2) that secures the condenser to the right side of the

radiator (1). Tighten the bolt to 5 N.m (44 in. lbs.).

6. Tighten the nut that secures the A/C discharge line to the A/C condenser to 22.5 N.m (200 in. lbs.).

7. Install the grille. Refer to INSTALLATION .

Fig. 165: Removing/Installing Nuts That Secure A/C Suction Line And A/C Discharge Line To A/C
Compressor
Courtesy of CHRYSLER LLC

8. Connect the A/C discharge line (3) 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.

4.0L ENGINE

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

refrigerant system. See REFRIGERANT OIL LEVEL. 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

2007 Dodge Nitro R/T

2007 HVAC Heating & Air Conditioning - Service Information - Nitro

Fig. 166: Radiator, Bolts, A/C Condenser, Nut & A/C Discharge Line
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. For clearance, position the A/C condenser (3) toward the left side of the vehicle.

4. Connect the A/C discharge line (5) to the A/C condenser and install the retaining nut (4) hand tight.

5. Reposition the A/C condenser and install the bolt (2) that secures the condenser to the right side of the

radiator (1). Tighten the bolt to 5 N.m (44 in. lbs.).

6. Tighten the nut that secures the A/C discharge line to the A/C condenser to 22.5 N.m (200 in. lbs.).

7. Install the grille. Refer to INSTALLATION .

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.

2007 Dodge Nitro R/T

2007 HVAC Heating & Air Conditioning - Service Information - Nitro