Title: Check the engine for oil, coolant, air, fuel, and exhaust leaks.
Course: Diesel Equipment Technology I (20107-I) > Section: Preventive Maintenance and Inspection: Servicing the Engine

Checking should include

- before starting the engine–a walk-around inspection to check oil and coolant levels and to look for oil, coolant, air, fuel, and visible signs of exhaust leaks
- after starting the engine–another walk-around inspection to look for dynamic leaks.

ASE 1: I. Diesel Engines: A. General (P-1)

Process/Skill Questions:

- Why should inspections be performed both prior to start-up and after start-up?
- What happens if the coolant levels are too low?