What happened to my glow plugs this time?  Southwest Diesel has come across another unfortunate glow plug issue.

The stud is damaged.

Cause:

• Excessive terminal-nut tightening torque
• Use of incorrect wrench

Effect:

• Terminal stud shears off, damage to hexagon, short circuit.

Corrective:

• Use appropriate torque wrench
• Torque glow plug according to specifications
• Replace with Bosch quality glow plugs from Southwest Diesel