Troubleshoot glow plugs on diesel engines.

Troubleshooting should include

• wearing required PPE
• identifying why the glow plug(s) are not working
• making necessary adjustments or repairs using appropriate tools, equipment, and repair manuals
• following all required safety procedures, guidelines, protocols, and manufacturer specifications for glow plug diagnostic procedures. 

Process/Skill Questions:

• What function do glow plugs have?
• What are some symptoms of bad glow plugs?