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Home >> Chevrolet >> 2007 >> Express 2500 V8-4.8L >> Repair and Diagnosis >> Heating and Air Conditioning >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> Diagnosis By Symptom - HVAC System - Manual >> Too Hot In Vehicle

Too Hot In Vehicle



Too Hot in Vehicle

Test Description

Step 1 - Step 11:




Step 12 - Step 18:




The numbers below refer to the step numbers on the diagnostic table.
7. The specified values are from the A/C System Performance Test.
13. The voltage will vary between 0-12 volts during normal operation. The HVAC control assembly connector must be connected during this step.