Function Test A/C - HVAC System - Manual

2000 Chevrolet K Tahoe 4WD V8-5.7L VIN RSECTION Function Test A/C - HVAC System - Manual
As an aid in determining whether or not the air conditioning, electrical, air, and refrigeration Systems are operating properly use the System Performance Table.
1. The operation of the air conditioning blower at all speeds, in any position except the OFF position, and the engagement of the compressor clutch indicate that the electrical circuits are functioning properly.
2. The same hand-felt temperature of the evaporator inlet pipe and the accumulator surface of an operating system indicates a properly charged system.
3. The operation of the air conditioning control head in the distribution of air from the designated outlets indicates proper functioning.
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.