Intermittent Simulation
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2002 GMC Savana, 2002 Chevrolet Chevy Express, 2001 GMC Savana Special, 2001 GMC Savana Camper Special, and 2001 GMC Savana. However, it is still accessible from the selected car via links, so may be relevant.
Use the following methods to reproduce conditions causing intermittent problem(s):
- Apply light vibration to components.
- Apply small amount of heat to component.
- Wiggle or bend wiring harness.
- Remove/apply vacuum supply source.
Monitor circuit/component voltage or resistance while attempting to simulate intermittent. If vehicle is running, monitor for DTCs. Use test results to identify problem component or circuit.