Procedures should include
- using refractometer or test strips to test coolant
- recovering coolant for recycling
- flushing and refilling cooling system
- bleeding air
- following manufacturer guidelines.
ASE Education Foundation
2017 Maintenance and Light Repair (MLR) Level
I. Engine Repair
C. Lubrication and Cooling Systems
Task 4
Process/Skill Questions:
- What are the different types of coolants?
- How should a technician drain, recover, flush, and refill a cooling system?
- How should a technician bleed air from a cooling system? Why should this be done?