Operating Instructions for the Evaporative Emission System Tester (EEST)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Vehicle Setup
- Engine OFF, open the hood. Position a large fan to blow air under the vehicle onto the fuel tank area.
- Connect the red battery clip from the tester to the positive battery terminal.
- Connect the black battery clip from the tester to chassis ground.
IMPORTANT:
A large difference between the vehicle temperature and shop temperature will seriously affect the accuracy of the tests. Always allow enough time, at least 15 minutes, for the vehicle temperature to adjust to the shop temperature. Refer to Temperature Variation Instructions for more information about vehicle versus shop temperatures.
IMPORTANT:
The vehicle battery must be fully charged for optimum tester performance.