P0337 GMC Code - Crankshaft Position Sensor Circuit Low Duty Cycle
Quick Answer
The P0337 diagnostic trouble code (DTC) for GMC vehicles indicates a problem with the crankshaft position sensor circuit having a low duty cycle. Common causes include Faulty crankshaft position sensor, Damaged wiring or connectors in the sensor circuit, ECM issues. 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
- P0337 GMC indicates Crankshaft Position Sensor Circuit Low Duty Cycle.
- Common causes
- Common causes include Faulty crankshaft position sensor, Damaged wiring or connectors in the sensor circuit, ECM issues.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P0337 GMC Description
The P0337 diagnostic trouble code (DTC) for GMC vehicles indicates a problem with the crankshaft position sensor circuit having a low duty cycle. The crankshaft position sensor is responsible for monitoring the rotational speed and position of the crankshaft, which is crucial for the engine's operation. When the sensor detects an abnormally low duty cycle, it means that the signal output from the sensor is not within the expected range. This can lead to issues with ignition timing, fuel injection, and overall engine performance.
Common Causes of P0337 GMC
- Faulty crankshaft position sensor
- Damaged wiring or connectors in the sensor circuit
- ECM issues
- Poor electrical connections
- Engine timing belt or chain issues
Symptoms of P0337 GMC
- Engine misfires
- Rough idling
- Stalling
- Difficulty starting the vehicle
- Poor engine performance
How to Fix P0337 GMC
- Diagnose the code using a scan tool to pinpoint the exact cause of the issue.
- Inspect the crankshaft position sensor, wiring, and connectors for any damage or corrosion.
- Replace the faulty crankshaft position sensor if necessary.
- Repair or replace any damaged wiring or connectors in the sensor circuit.
- Clear the DTC and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0337 GMC
The typical repair costs for addressing a P0337 code can range from $100 to $300, including parts and labor. However, actual costs may vary depending on the specific vehicle make and model, as well as the location and labor rates of the auto repair shop. It's advisable to consult with a professional technician for a more accurate estimate based on your individual circumstances.
When is the Code Detected?
Need more information about the P0337 GMC code?
Need more information on how to fix the P0337 GMC code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0337 GMC code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0337 GMC Code
No Frequently Asked Questions about P0337 GMC Code found.
Discuss the causes and fixes for P0337 GMC OBDII Code
Code P0337 GMC comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.