Heating-A/C System
WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
A/C SYSTEM
| Item | Description | Notes |
|---|---|---|
| A/C Compressor | Visteon HS-18 (2.4L/3.7L gasoline engines) | VC-46 PAG oil |
| Denso 10S17 (2.8L diesel engine) | ND-8 PAG oil | |
| Freeze-up Control | A/C low pressure switch | Input to PCM, accumulator mounted - cycles clutch off below -1° C (30° F), cycles back on above 7.2° C (45° F) |
| Low psi Control | A/C low pressure switch | Opens below 141 kPa (20.5 psi), resets above 234 - 262 kPa (34 - 38 psi) |
| High psi Control | A/C high pressure switch (diesel engine) | A/C discharge line mounted - opens at discharge pressure above 3100 - 3375 kPa (450 - 490 psi), resets at 1860 - 2275 kPa (270 - 330 psi) |
| A/C pressure transducer (gasoline engines) | A/C discharge line mounted - opens at discharge pressure above 2971 kPa (431 psi) and below 206 kPa (30 psi) | |
| R-134a Refrigerant Charge Capacity | 0.624 kg (1.37 lbs.) | Also see A/C Underhood Specification Label located in the engine compartment |
| A/C Clutch Coil Draw | 2.2 - 2.3 amps @ 12V ± 0.5V @ 21° C (70° F) | 2.8L diesel engine. A/C Clutch Field Coil Resistance when measured across coil lead connector is 3.6 ± 0.2 ohms. |
| 3.1 - 4 amps @ 12V ± 0.5V @ 21° C (70° F) | 2.4L/3.7L engine | |
| A/C Clutch Air Gap | 0.35 - 0.60 mm (0.014 - 0.024 in) | 2.8L diesel engine |
| 0.35 - 0.65 mm (0.014 - 0.025 in) | 2.4L/3.7L engine |
FASTENER TORQUE
| Description | N.m | Ft. Lbs. | In. Lbs. |
|---|---|---|---|
| All Screws NOT Listed Below | 2 | - | 17 |
| A/C Condenser Bracket Bolts | 5 | - | 44 |
| A/C Compressor Clutch Plate Nut/Bolt | 17.5 | - | 155 |
| A/C Compressor Bolts - 3.7L | Front outboard and rear bolt - 55 Front inboard bolt - 40 |
Front outboard and rear bolt - 41 Front inboard bolt - 30 |
- |
| A/C Compressor Bolts - 2.4L and 2.8L Diesel | 27 | 20 | - |
| Accumulator Retaining Band Bolt | 4.5 | - | 40 |
| Accumulator Bracket Nuts | 5 | - | 44 |
| Automatic Transmission Cooler Bolts | 5 | - | 44 |
| HVAC Housing Nuts | 6 | - | 53 |
| Refrigerant Lines to Accumulator Nuts | 9 | - | 80 |
| Refrigerant Lines to Condenser Nuts | 12 | - | 105 |
| Refrigerant Lines to Compressor Nuts/Bolts | 28 | 20 | - |
| Refrigerant Lines to Evaporator Nuts | 23 | 17 | - |