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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 233 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P0442: EVAP System - Small Leak Detected >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 Pontiac Montana, 2003 Oldsmobile Silhouette, and 2003 Chevrolet Venture. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step number in the diagnostic procedures.

  1. 2 -  This step verifies that a failure condition is present.
  2. 4 -  Introducing smoke in 15 second intervals may allow smaller leak areas to be more noticeable. When system is less pressurized, the smoke will sometimes escape in a more condensed manner. This step verifies that a leak is present.
  3. 6 -  This step verifies that repairs are complete and that there are no other leaks in the system.

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