Section 38 (HVAC Systems - Manual): Specifications

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

SPECIFICATIONS

Application

Specification

Compressor Type

Sierra & Silverado

Harrison HU6 6-Cyl

Avalanche, Escalade, Suburban, Tahoe & Yukon With Front A/C Only

Nippondenso 10S17 10-Cyl

Avalanche, Escalade, Suburban, Tahoe & Yukon With Front & Rear A/C

Nippondenso 10S20 10-Cyl

Compressor Belt Tension

⁽¹⁾

System Oil Capacity ⁽²⁾

Total (Front A/C Only)

8 ozs.

Total (Front & Rear A/C)

11 ozs.

With Accumulator Replacement

⁽³⁾

With Compressor Replacement

2 ozs.

With Condenser Replacement

1 ozs.

With Evaporator Replacement

3 ozs.

Refrigerant (R-134a) Capacity

Front A/C Only

28 ozs.

Front & Rear A/C (Utility)

42 ozs.

Front & Rear A/C (Suburban)

49 ozs.

System Operating Pressures ⁽⁴⁾

High Side

120-171 psi (8.44-12.02 kg/cm² )

Low Side

26-38 psi (1.83-2.67 kg/cm² )

⁽¹⁾	Belt tension is adjusted automatically by a spring-tensioned idler pulley. Belt adjustment is not required.

⁽²⁾	Use Polyalkylene Glycol (PAG) oil.

⁽³⁾	Add 2 oz. (60 ml) of PAG oil, plus the equal amount of oil drained from the accumulator.

⁽⁴⁾	Specification is with ambient temperature at 80°F (27°C), relative humidity is between 35-60 percent and engine speed at 1500 RPM.