Cylinder 3 Glow Plug Circuit Range/Performance

Common symptoms

What you'll notice

• Check for loose or damaged wiring connections to the glow plug in cylinder 3.
• Inspect and replace the glow plug in cylinder 3 if it is faulty or worn out.
• Clean or replace the glow plug control module that is responsible for controlling the circuit in cylinder 3.

Common causes

Most likely first

1. Faulty glow plug in cylinder 3
2. Wiring or connection issue in the glow plug circuit for cylinder 3
3. Faulty glow plug control module
4. Poor electrical connection or corrosion in the glow plug circuit for cylinder 3
5. Engine control unit (ECU) malfunction in relation to the glow plug circuit for cylinder 3

How to diagnose & fix

Work through it in order

1. Engine misfires or runs rough
2. Poor acceleration or lack of power
3. Increased fuel consumption
4. Difficulty starting the engine, especially when cold
5. Check engine light is illuminated