Title: Inspect and test components and hoses of the evaporative emissions control (EVAP) system; determine needed action.
Course: Automotive Technology III (20104-III) > Section: Engine Performance: Emissions Control Systems Diagnosis and Repair

Procedure should include

- performing a visual inspection
- using a smoke machine (optional)
- comparing test results to service materials and manufacturer guidelines.

ASE Education Foundation
2017 Automobile Service Technology (AST) Level
VIII. Engine Performance
E. Emissions Control Systems Diagnosis and Repair
Task 6

Process/Skill Questions:

- What tool is used to inspect hoses in the evaporative system?
- What are the leak-testing methods used by manufacturers?
- Why do evaporative emissions need to be controlled?