Visual/Physical Inspection: Notes

2004 Oldsmobile Bravada AWDSECTION Notes
WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
  • Inspect for aftermarket devices which could affect the operation of the HVAC System. Refer to CHECKING AFTERMARKET ACCESSORIES .
  • Inspect the system components which are easily accessible or visible for obvious damage or for conditions which could cause the symptom.
  • Verify the A/C compressor clutch turns freely and is not seized.
  • The A/C compressor will not operate in cold, outside air temperatures. Refer to AIR TEMPERATURE DESCRIPTION AND OPERATION  .
  • The following conditions may cause window fogging:
    • A wet carpet
    • High humidity
    • An interior water leak
    • A blocked drain tube to the A/C evaporator
    • Maximum passenger capacity
    • Blocked body pressure relief valves
  • Inspect the air distribution system for causes of reduced airflow:
    • An obstructed or dirty passenger compartment air filter
    • Blocked or damaged air vents
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.