Inspection should include
- raising the vehicle on a lift to a level position
- conducting a visual inspection
- using dye and ultraviolet light or a smoke machine, if necessary
- making repairs as necessary.
ASE Education Foundation
2017 Maintenance and Light Repair (MLR) Level
I. Engine Repair
A. General
Task 3
Process/Skill Questions:
- Why are fluids different colors? What are the colors of various fluids?
- How does the use of dye and an ultraviolet light save time in locating leaks?
- How does the use of a smoke machine save time?
- What are the safety considerations when searching for leaks?
- Why is the origin of a leak usually higher than or forward from where the leak appears?