Section 101 (HVAC Systems - Automatic): Specifications: Notes

2004 Oldsmobile Bravada AWDSECTION Notes
WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
SYSTEM SPECIFICATIONS

Application Specification
Compressor Type Sanden Scroll
Compressor Belt Tension (1)
System Oil Capacity (2)
With Rear A/C 8.5 ozs.
Without Rear A/C 7.4 ozs.
Refrigerant (R-134a) Capacity
With Rear A/C 48 ozs.
Without Rear A/C 29 ozs.
System Operating Pressures (3)
High Side
With Rear A/C 161-213 psi (11.3-15.0 kg/cm2 )
Without Rear A/C 160-200 psi (11.2-14.1 kg/cm2 )
Low Side
With Rear A/C 43-57 psi (3.0-4.0 kg/cm2 )
Without Rear A/C 31-44 psi (2.2-3.1 kg/cm2 )
(1) Tighten serpentine belt until indicator mark on movable portion of belt tensioner is within limits of slotted area on stationary portion of belt tensioner.
(2) Use PAG oil.
(3) Specification is with ambient temperature at 76-85°F (24-29°C), relative humidity at 35-50 percent.
RENDER: 1.0x

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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.