P0335 2018 GMC Sierra Code - Crankshaft Position Sensor Circuit
Quick Answer
The P0335 diagnostic trouble code (DTC) for a 2018 GMC Sierra indicates a problem with the crankshaft position sensor circuit. Common causes include Faulty crankshaft position sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or poor connections in the sensor 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
- P0335 2018 GMC Sierra indicates Crankshaft Position Sensor Circuit.
- Common causes
- Common causes include Faulty crankshaft position sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or poor connections in the sensor 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 P0335 2018 GMC Sierra Description
The P0335 diagnostic trouble code (DTC) for a 2018 GMC Sierra indicates a problem with the crankshaft position sensor circuit. The crankshaft position sensor is a vital component of the engine management system, as it monitors the position and rotational speed of the crankshaft. This information is crucial for the engine control module (ECM) to determine the ignition timing and fuel injection timing. When the ECM detects an issue with the crankshaft position sensor circuit, it can lead to poor engine performance, misfires, and even stalling.
Common Causes of P0335 2018 GMC Sierra
- Faulty crankshaft position sensor
- Damaged wiring or connectors in the sensor circuit
- Corrosion or poor connections in the sensor circuit
- Issues with the ECM
- Mechanical damage to the crankshaft position sensor
Symptoms of P0335 2018 GMC Sierra
- Engine misfires
- Rough idling or stalling
- Difficulty starting the engine
- Decreased fuel efficiency
- Check Engine Light illuminated
How to Fix P0335 2018 GMC Sierra
- Diagnose the issue by using a scan tool to read the DTC and perform a visual inspection of the sensor and its wiring.
- Replace the faulty crankshaft position sensor if it is determined to be the cause of the problem.
- Check and repair any damaged wiring or connectors in the sensor circuit.
- Clear the DTC from the ECM memory and test drive the vehicle to ensure the issue has been resolved.
- If the problem persists, further diagnostics may be needed to identify any underlying issues with the ECM or other components.
Cost to Fix P0335 2018 GMC Sierra
The cost of repairing a P0335 DTC on a 2018 GMC Sierra can vary depending on the specific cause of the issue. In general, the price of a new crankshaft position sensor ranges from $50 to $150, while labor costs can range from $100 to $200. Therefore, the total repair cost could be anywhere from $150 to $350. Keep in mind that these are rough estimates, and actual costs may vary based on the location, vehicle make and model, and labor rates at the auto repair shop. It is recommended to obtain quotes from multiple shops to ensure a competitive price.
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