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