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Home >> GMC >> 2002 >> Jimmy 2D Utility, Part Time, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 779 (HVAC System) >> Refrigerant System >> Refrigerant Charging >> Airtightness Check
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Airtightness Check

WARNING: This page is about a different car, the 2004 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
  1. Stop the vacuum pump and wait for 5 min. 
  2. Check the high-and low-pressure side readings of the manifold gauge.