Dodge Nitro. Manual - part 775

7. Separate the A/C liquid line from the A/C suction line and remove the suction line from the engine 

compartment.  

8. Install plugs in, or tape over the opened refrigerant line fittings and the compressor and expansion valve 

ports.  

4.0L ENGINE 

Fig. 188: A/C Discharge Line, Nuts, A/C Suction Line & 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 INFOMATION ).  

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

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

gasket. 

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

  

Fig. 189: A/C Suction Line, Nut, A/C Expansion Valve & A/C Liquid Line 
Courtesy of CHRYSLER LLC 

6. Remove the nut (2) that secures the A/C suction line (1) and the A/C liquid line (4) to the A/C expansion 

valve (3) and disconnect the lines from the valve.  

7. Separate the A/C liquid line from the A/C suction line and remove the suction line from the engine 

compartment.  

8. Install plugs in, or tape over the opened refrigerant line fittings and the compressor and expansion valve 

ports.  

INSTALLATION 

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 
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

  

Fig. 190: A/C Suction Line, Nut, A/C Expansion Valve & A/C Liquid Line 
Courtesy of CHRYSLER LLC 

1. Remove the tape or plugs from the opened refrigerant line fittings and the compressor and expansion 

valve ports.  

2. Lubricate new O-ring seals with clean refrigerant oil and install them and a new gasket on the refrigerant 

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. Connect the A/C liquid line (4) to the A/C suction line (1).  

4. Connect the A/C liquid and suction lines to the A/C expansion valve (3) and install the retaining nut (2). 

Tighten the nut to 23 N.m (17 ft. lbs.). 

Fig. 191: A/C Discharge Line, Nuts, A/C Suction Line & A/C Compressor 
Courtesy of CHRYSLER LLC 

5. Connect the A/C suction line (3) to the A/C compressor (4).  

6. Install the nut (2) that secures the A/C suction line to the A/C compressor. Tighten the nut to 12 N.m (105 

 

2007 Dodge Nitro R/T 

2007 HVAC Heating & Air Conditioning - Service Information - Nitro

  

in. lbs.).  

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

INSTALLATION for 4.0L - SERVICE INFORMATION ).  

8. Reconnect the negative battery cable.  

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

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

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

2.8L RHD ENGINE 

Fig. 192: Nut, A/C Expansion Valve, A/C Suction Line & A/C Liquid Line 
Courtesy of CHRYSLER LLC 

1. Remove the tape or plugs from the opened refrigerant line fittings and the compressor and expansion 

valve ports.  

2. Lubricate new O-ring seals with clean refrigerant oil and install them and a new gasket on the refrigerant 

line fittings. Use only the specified O-rings as they are made of a special material for the R-134a system. 

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