What is the code P0017 on a 2013 Chevy Sonic?
The P0017 code on a 2013 Chevy Sonic indicates a crankshaft-to-exhaust camshaft position correlation issue on Bank 1, meaning the engine timing relationship detected by the PCM is out of spec.
What P0017 means for your 2013 Sonic
P0017 is a diagnostic trouble code (DTC) that signals the PCM has detected a mismatch between the crankshaft position sensor and the exhaust camshaft position sensor when the engine is running. This correlation is essential for proper valve timing and engine synchrony. In the Sonic, this can affect performance, idle quality, and drivability if left unaddressed.
Common causes of P0017 on a 2013 Chevy Sonic
Several issues can trigger a P0017 in this vehicle. The most frequent culprits are mechanical timing problems and sensor/electrical faults. The following list outlines typical causes you may encounter:
- Timing chain jump, stretch, or excessive slack, leading to mis-timed valves
- Worn or failed timing chain tensioner or guides
- Faulty or sticking exhaust camshaft position sensor or a malfunctioning VVT solenoid
- Faulty crankshaft position sensor or exhaust camshaft sensor wiring, connectors, or poor connections
- Low oil pressure or dirty oil that impairs the VVT system and oil passages
- Engine internal damage from a timing event (e.g., bent valves) if the timing jumped
- PCM software calibration issues or a needed service bulletin update (less common)
Conclusion: Most P0017 cases stem from timing or sensor/electrical faults; addressing oil quality and wiring can be part of the fix.
Diagnosis: how to confirm P0017
To determine the exact cause, follow a structured diagnostic approach that combines data, mechanical inspection, and sensor testing.
Symptoms you might notice
Symptoms that commonly accompany P0017 include rough idle, misfires, reduced power, poor acceleration, check engine light on, and sometimes stalling. If you notice these, proceed with a diagnostic scan and physical inspection.
Before proceeding with the diagnostic steps, ensure you have a capable scan tool to read live data and freeze-frame information from the PCM.
- Retrieve and review the stored P0017 code along with any related codes (such as P0016 or P0017 family codes) and freeze-frame data to understand engine conditions when the fault occurred.
- Inspect timing marks and verify the engine timing is within factory specifications for the specific engine variant (1.8L or 1.4L turbo in the Sonic).
- Check the timing chain tensioner, guides, and chain for wear, slack, or signs of jumping timing.
- Test the exhaust camshaft position sensor and crankshaft position sensor for proper operation, including wiring resistance and signal integrity at key ranges.
- Inspect the VVT solenoid and oil passages; confirm oil level and quality are adequate and that oil is not contaminated or varnished.
- Explore wiring and connectors for damage, corrosion, or loose connections that could cause intermittent sensor readings.
- If timing is found to be out of spec, perform the necessary timing repair and reseal the timing system per GM service procedures.
Conclusion: A combination of data review, mechanical timing assessment, and sensor/wiring checks will reveal whether the fix is mechanical timing work, sensor replacement, or electrical repair.
Fixes typically recommended for P0017 on the 2013 Sonic
Once the root cause is identified, these repair actions are commonly pursued. The exact sequence depends on what the diagnosis reveals.
Typical repair steps
- Replace or rebuild the timing chain, along with the tensioner and guides if wear or jumping is found.
- Replace faulty crankshaft position sensor and/or exhaust camshaft position sensor; repair or replace damaged wiring/ connectors as needed.
- Replace the VVT solenoid or upper oil control valve if it’s sticking or clogged; flush or replace oil and ensure proper oil flow.
- Address any valve train damage (e.g., bent valves) if timing damage occurred; perform necessary valve or cylinder head service.
- Reprogram or reflash the PCM if a software update is requested by GM, then clear codes and perform a controlled test drive to verify resolution.
Conclusion: Most P0017 repairs involve restoring proper cam/crank timing, addressing sensor/electrical faults, and ensuring the VVT system receives clean oil.
Notes for 2013 Chevy Sonic owners
The Sonic’s 2013 model year uses a timing chain on its engines; “Bank 1 Exhaust” refers to the exhaust-side cam timing for cylinder 1 and adjacent cylinders. If P0017 appears, treat it as a potentially serious timing fault. Symptoms and warnings should prompt prompt diagnosis and, if needed, towing to a repair facility to avoid potential engine damage from running out of sync.
Summary
P0017 on a 2013 Chevy Sonic signals a crankshaft-to-exhaust camshaft position correlation issue on Bank 1. It generally points to timing-chain-related problems, a faulty exhaust cam or crank position sensor, or related wiring and oil-condition issues. A careful diagnostic process—from data review and mechanical timing checks to sensor testing—will determine whether the repair is mechanical timing work, sensor replacement, or electrical repair. After the repair, clear the codes and test drive to confirm the problem is resolved.
