Engine-CodesGMC – P0330 2016 GMC Sierra

P0330 2016 GMC Sierra Code - Knock Sensor Circuit Bank 2

Quick Answer

The P0330 diagnostic trouble code (DTC) for a 2016 GMC Sierra specifically refers to a problem with the Knock Sensor Circuit on Bank 2. Common causes include Faulty knock sensor, Wiring issues or shorts in the knock sensor circuit, Corrosion or poor connections in the sensor wiring. 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
P0330 2016 GMC Sierra indicates Knock Sensor Circuit Bank 2.
Common causes
Common causes include Faulty knock sensor, Wiring issues or shorts in the knock sensor circuit, Corrosion or poor connections in the sensor wiring.
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.
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code P0330 2016 GMC Sierra Description

The P0330 diagnostic trouble code (DTC) for a 2016 GMC Sierra specifically refers to a problem with the Knock Sensor Circuit on Bank 2. The knock sensor is a crucial component in the engine management system that detects abnormal combustion, also known as engine knock or detonation. When the knock sensor detects these irregularities, it sends a signal to the engine control module (ECM) to adjust the ignition timing to prevent engine damage.

OBDII Code P0330 2016 GMC Sierra - Knock Sensor Circuit Bank 2
P0330 2016 GMC Sierra Code - Knock Sensor Circuit Bank 2

Common Causes of P0330 2016 GMC Sierra

  1. Faulty knock sensor
  2. Wiring issues or shorts in the knock sensor circuit
  3. Corrosion or poor connections in the sensor wiring
  4. Engine mechanical problems causing abnormal combustion
  5. ECM software or hardware issues

Symptoms of P0330 2016 GMC Sierra

  1. Engine knocking or pinging noises
  2. Decreased engine performance or power
  3. Poor fuel economy
  4. Illumination of the check engine light
  5. Engine misfires

How to Fix P0330 2016 GMC Sierra

  1. Diagnose the specific cause of the P0330 code by using a scan tool to monitor the knock sensor signal and circuit.
  2. Inspect the knock sensor and its wiring for any damage or corrosion. Replace the knock sensor if necessary.
  3. Check the wiring harness for any breaks or shorts. Repair or replace damaged wiring.
  4. Clear the DTC and test drive the vehicle to ensure the code does not return.
  5. If the issue persists, further diagnosis may be needed to identify underlying engine problems causing abnormal combustion.

Cost to Fix P0330 2016 GMC Sierra

The cost of repairing a P0330 code on a 2016 GMC Sierra can vary depending on the specific cause of the issue. Typically, the cost of a new knock sensor ranges from $50 to $150, while labor costs can range from $100 to $300. Overall, the total repair cost could be between $150 and $450. It's important to note that these are rough estimates, and actual costs may vary based on factors such as location, labor rates, and additional repairs needed. It's recommended to consult with a qualified mechanic for a more accurate cost estimate.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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