P067A Code - Cylinder 4 Glow Plug Control Circuit Low Voltage
Quick Answer
The diagnostic trouble code (DTC) P067A indicates an issue with the glow plug control circuit in cylinder 4 of the vehicle's engine. Common causes include Faulty glow plug in cylinder 4, Damaged or corroded wiring harness, Malfunctioning glow plug relay. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P067A indicates Cylinder 4 Glow Plug Control Circuit Low Voltage.
- Common causes
- Common causes include Faulty glow plug in cylinder 4, Damaged or corroded wiring harness, Malfunctioning glow plug relay.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P067A Description
The diagnostic trouble code (DTC) P067A indicates an issue with the glow plug control circuit in cylinder 4 of the vehicle's engine. Glow plugs are essential components in a diesel engine that help with cold starts by heating the combustion chamber to facilitate ignition. In this case, the code specifically points to low voltage in the control circuit for the glow plug in cylinder 4.
Common Causes of P067A
- Faulty glow plug in cylinder 4
- Damaged or corroded wiring harness
- Malfunctioning glow plug relay
- Issues with the vehicle's electrical system
Symptoms of P067A
- Difficulty starting the engine, especially in cold weather
- Rough idling or misfiring
- Decreased fuel efficiency
- Increased emissions
- Illumination of the check engine light
How to Fix P067A
- Begin by diagnosing the exact cause of the low voltage in the glow plug control circuit, using a multimeter to test the voltage at various points in the circuit.
- Inspect the glow plug in cylinder 4 for any signs of damage or wear, and replace it if necessary.
- Check the wiring harness for any visible damage or corrosion, and repair or replace any affected wires.
- Test the glow plug relay to ensure proper functioning, replacing it if it is faulty.
- Clear the DTC from the vehicle's computer system and test the engine to ensure that the issue has been resolved.
Cost to Fix P067A
The cost of repairing a cylinder 4 glow plug control circuit low voltage issue can vary depending on the specific cause of the problem and the vehicle's make and model. On average, the parts required for this repair, including a new glow plug, wiring harness, and relay, can cost between $100 and $300. Labor costs at an auto repair shop can range from $100 to $300 or more, depending on the shop's hourly rates and the complexity of the repair. It's recommended to get a detailed quote from a mechanic or repair shop to determine the exact cost for your vehicle.
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Code P067A Information for Specific Makes
- P067A Chevrolet — Cylinder 4 Glow Plug Control Circuit Low Voltage
- P067A Ford — Cylinder 4 Glow Plug Control Circuit Low
- P067A GMC — Cylinder 4 Glow Plug Control Circuit Low Voltage
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