Title: Perform engine manifold pressure tests (vacuum/boost); determine needed action.
Course: Automotive Technology III (20104-III) > Section: ENGINE PERFORMANCE: General

Performance should include

- using a vacuum gauge
- comparing the vacuum gauge reading to the map tool data
- searching for a non-ported vacuum source
- performing an idle-vacuum test
- performing a cranking-vacuum test
- performing an exhaust-restriction test.

Process/Skill Questions:

- How does a vacuum gauge respond to a restricted exhaust system?
- What is a normal idle vacuum?
- What is a ported vacuum?