Glow Plug/Heater Circuit A
2000-2003 Ford Excursion 7.3L V8 Power Stroke Diesel
Description
Malfunction in the glow plug heating circuit. Glow plugs are used in diesel engines to preheat the combustion chamber for cold starting.
Symptoms
- Check Engine Light
- Hard cold starting
- White smoke on cold start
- Extended cranking
- Rough idle when cold
Common Causes
- Faulty glow plug(s)
- Glow plug relay failure
- Glow plug module failure
- Wiring damage
- Blown fuse
Diagnostic Steps
- Test individual glow plug resistance (typically 0.5-2 ohms)
- Check glow plug relay
- Test glow plug module
- Check fuse
- Inspect wiring
Repair Notes
Test each glow plug individually. Replace any with open circuit or high resistance. Check relay/module.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0380 on Other Vehicles
Ford Excursion
2003-2005 6.0L V8 Power Stroke Diesel
Ford F-150
2018-2020 3.0L V6 Power Stroke Diesel
Ford F-250 Super Duty
1999-2003 7.3L V8 Power Stroke Diesel
Ford F-250 Super Duty
2003-2007 6.0L V8 Power Stroke Diesel
Ford F-250 Super Duty
2008-2010 6.4L V8 Power Stroke Diesel
Ford F-250 Super Duty
2011-2016 6.7L V8 Power Stroke Diesel
Ford F-250 Super Duty
2017-2024 6.7L V8 Power Stroke Diesel
Ford F-350 Super Duty
1999-2003 7.3L V8 Power Stroke Diesel
Common Questions
What does code P0380 mean on a 2000-2003 Ford Excursion?
P0380 stands for "Glow Plug/Heater Circuit A". Malfunction in the glow plug heating circuit. Glow plugs are used in diesel engines to preheat the combustion chamber for cold starting.
What are the symptoms of P0380 on a Ford Excursion?
Common symptoms of P0380 include: Check Engine Light, Hard cold starting, White smoke on cold start, Extended cranking, Rough idle when cold.
What causes P0380 on a 2000-2003 Ford Excursion?
Common causes of P0380 include: Faulty glow plug(s), Glow plug relay failure, Glow plug module failure, Wiring damage, Blown fuse.