Section 41 (HVAC Systems - Manual): Specifications

2004 Oldsmobile Bravada AWDSECTION 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.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.