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Home >> Chevrolet >> 2007 >> Chevy Express G2500, Van Cargo, 6.6 6 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Control System & Fuel System - 6.6L (LLY) - Troubleshooting & Diagnosis) >> Charge Air Cooler Diagnosis (Charge Air Cooler Air Leak Test) >> Leak Test Passes

Leak Test Passes

WARNING: This page is about a different variant/trim than selected.

If the pressure drop is less than 34 kPa (5 psi) in 15 seconds, the leak test passes. Remove the tester by performing the following procedure:

  1. Slowly bleed the air from the cooler by depressing the relief valve on the adapter plate.
  2. Remove the air hose, gage/regulator assembly, and both adapters.
  3. Connect the charge air hose to the turbocharger.

    Tighten:  Torque the clamp to 8 N.m (70 lb in).

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