2007 Grand Cherokee WK Factory Service Manual 24 - HEATING & AIR CONDITIONING

SPECIFICATIONS

A/C SYSTEM


Item
 
Description
 
Notes
 
A/C Compressor
 
Denso 10S17
 
ND-8 PAG oil
 
Freeze–up Control
 
Evaporator Temperature Sensor
 
HVAC housing mounted
 
Low psi Control
 
A/C Pressure Transducer
 
Discharge line mounted - opens below 110 kPa (16 psi), closes above 220 kPa (32 psi)
 
High psi Control
 
A/C Pressure Transducer
 
Discharge line mounted - opens above 3219 kPa (476 psi), closed below 2937 kPa (426 psi)
 
R-134a Refrigerant Charge Capacity
 
0.68 kg (1.5 lbs.)
 
Also see A/C Underhood Specification Label located in the engine compartment
 
A/C Clutch Coil Draw
 
3.3 amps
 
@ 12V ± 0.5V @ 21° C (70° F)
 
A/C Clutch Coil Resistance
 
3.6 ± 0.2 ohms
 
When measured across coil lead connector
 
A/C Clutch Air Gap
 
0.35 - 0.60 mm (0.014 - 0.024 in.)
 
 

TORQUE


Description
 
N·m
 
Ft. Lbs.
 
In. Lbs.
 
All Screws NOT Listed Below
 
2
 

 
17
 
A/C Compressor to 3.0L Engine Bolts
 
55
 
41
 

 
A/C Compressor to 3.7L/4.7L Engine Bolt (#3)
 
40
 
30
 

 
A/C Compressor to 3.7L/4.7L Engine Bolts (except #3)
 
55
 
41
 

 
A/C Compressor to 5.7L/6.1L Engine Bolts
 
55
 
41
 

 
A/C Condenser to Radiator Bolts
 
5
 

 
44
 
A/C Expansion Valve to Evaporator Tube Tapping Block Bolts
 
11
 

 
97
 
Air Distribution Housing Halves Screws
 
2.2
 

 
20
 
Air Distribution Housing to HVAC Housing Screws
 
2.2
 

 
20
 
Blower Motor Screws
 
2.2
 

 
20
 
Compressor Shaft Bolt
 
19
 

 
168
 
Heater Core and Tube Cover to HVAC Housing Screws
 
2.2
 

 
20
 
Heater Core Tubes to Heater Core Bolt
 
3
 

 
27
 
Heater Core Tube Retaining Bracket to HVAC Housing Screw
 
2.2
 

 
20
 
HVAC Housing Halves Screws
 
2.2
 

 
20
 
HVAC Housing to Dash Panel Bolts/Nut
 
7
 

 
62
 
Instrument Panel to Dash Nuts
 
11
 

 
97
 
Instrument Panel Covers to Instrument Panel Support Screws
 
2.2
 

 
20
 
Instrument Panel Covers to Steering Column Screws
 
2.2
 

 
20
 
Refrigerant Lines to A/C Expansion Valve Nut
 
23
 
17
 

 
Refrigerant Line to A/C Compressor Nut
 
20
 
15
 

 
Refrigerant Line to A/C Condenser Nut
 
20
 
15
 

 
Refrigerant Line to Receiver/drier Nut
 
20
 
15
 

 
Receiver/drier to A/C Condenser Nut
 
20
 
15
 

 
Receiver/drier to Radiator/fan shroud Screw
 
5
 

 
44