P067A 2017 GMC Sierra Code - Cylinder 4 Glow Plug Control Circuit Low Voltage
Quick Answer
The P067A diagnostic trouble code (DTC) for a 2017 GMC Sierra refers to an issue with the Glow Plug Control Circuit in Cylinder 4 having low voltage. Common causes include Faulty glow plug in Cylinder 4, Malfunctioning glow plug relay, Damaged wiring or connectors in the glow plug control circuit. 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 2017 GMC Sierra indicates Cylinder 4 Glow Plug Control Circuit Low Voltage.
- Common causes
- Common causes include Faulty glow plug in Cylinder 4, Malfunctioning glow plug relay, Damaged wiring or connectors in the glow plug control circuit.
- 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 2017 GMC Sierra Description
The P067A diagnostic trouble code (DTC) for a 2017 GMC Sierra refers to an issue with the Glow Plug Control Circuit in Cylinder 4 having low voltage. Glow plugs are essential components in diesel engines, as they help in starting the engine by heating up the combustion chamber, especially in cold weather conditions. The control circuit is responsible for managing the operation of the glow plug, ensuring it heats up properly.
Common Causes of P067A 2017 GMC Sierra
- Faulty glow plug in Cylinder 4
- Malfunctioning glow plug relay
- Damaged wiring or connectors in the glow plug control circuit
- Issues with the powertrain control module (PCM)
- Poor electrical connections or corrosion affecting the circuit
Symptoms of P067A 2017 GMC Sierra
- Difficulty starting the engine, especially in cold weather
- Rough idling or vibrations when the engine is running
- Misfires or hesitation during acceleration
- Decreased fuel efficiency
- Engine stalling or shutting off unexpectedly
How to Fix P067A 2017 GMC Sierra
- Begin by visually inspecting the glow plug in Cylinder 4 for any physical damage or signs of wear.
- Test the glow plug relay to ensure it is functioning correctly.
- Check the wiring and connectors in the control circuit for any damage or loose connections.
- Use a multimeter to test the voltage in the control circuit and diagnose any low voltage issues.
- If necessary, replace the faulty glow plug, relay, or repair any damaged wiring to resolve the low voltage issue.
Cost to Fix P067A 2017 GMC Sierra
The cost of repairing a Cylinder 4 Glow Plug Control Circuit with low voltage in a 2017 GMC Sierra can vary depending on the specific components that need to be replaced or repaired. On average, the repair costs can range from $150 to $400, including parts and labor. It is important to note that diagnostic time and labor rates at auto repair shops can vary based on location, vehicle make and model, and engine type. It's recommended to get quotes from multiple shops to ensure a competitive price for the repair.
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Frequently Asked Questions about P067A 2017 GMC Sierra Code
What does the OBDII code P067A mean on a 2017 GMC Sierra?
1. P067A indicates a low voltage issue in the glow plug control circuit for cylinder 4, which helps with cold engine starting in diesel engines. 2.
What are the symptoms of code P067A on a 2017 GMC Sierra?
Symptoms may include difficulty starting the engine in cold weather, an illuminated check engine light, and potentially reduced fuel efficiency. 3.
What causes the P067A code to appear on a 2017 GMC Sierra?
Common causes include a faulty glow plug, damaged wiring or connectors in the glow plug circuit, or a malfunctioning glow plug control module. 4.
Can I still drive my 2017 GMC Sierra with the P067A code?
Yes, but it’s not recommended to ignore the issue, especially in cold climates, as it could make starting the engine difficult and potentially lead to further damage. 5.
How do I diagnose the P067A code on a 2017 GMC Sierra?
Start by inspecting the glow plug and its wiring for damage or corrosion. Use a multimeter to check voltage and resistance in the circuit, and test the glow plug control module if necessary. 6.
How much does it cost to fix the P067A code on a 2017 GMC Sierra?
The cost depends on the root cause. Replacing a glow plug typically costs $50–$150, while repairing wiring or replacing the glow plug control module can vary. 7.
Can a bad battery cause the P067A code on a 2017 GMC Sierra?
Yes, a weak or failing battery can cause low voltage issues in the glow plug circuit, leading to the P067A code. 8.
How do I reset the P067A code on a 2017 GMC Sierra?
After repairing the issue, the code can be cleared using an OBDII scanner. If the problem persists, the code will return. 9.
Is the P067A code specific to cylinder 4 on a 2017 GMC Sierra?
Yes, the P067A code is specific to the glow plug control circuit for cylinder 4. 10.
What happens if I ignore the P067A code on a 2017 GMC Sierra?
Ignoring the code can lead to poor cold starts, increased emissions, and potential damage to the glow plug system over time.
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