P0301 Chevrolet Traverse
Cylinder 1 Misfire Detected · Powertrain Code · High · Repair: Easy
What is P0301?
Misfire detected in cylinder 1. Typically caused by a worn spark plug, bad ignition coil, faulty fuel injector, or low compression in that cylinder.
When the Chevrolet Traverse triggers code P0301 (cylinder 1 misfire detected), it typically points to an issue in the powertrain system. This is a high severity code, so address it promptly to avoid further damage or safety concerns. Below you'll find the most common causes, symptoms, and repair options specific to the Chevrolet Traverse.
This repair is rated easy, meaning basic tools, no lift needed.
Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your Chevrolet Traverse.
Common Causes on Chevrolet Traverse
- Ignition coil pack failure on cylinder 1 of 3.6L V6
- Spark plug worn or fouled on 3.6L V6 engine
- Fuel injector failure on cylinder 1 GDI injector
- Intake valve carbon buildup from GDI operation on 3.6L
Symptoms
- Rough idle with noticeable engine vibration
- Engine shaking or vibration especially at idle
- Loss of power during acceleration
- Check engine light flashing (indicating catalytic converter damage risk)
- Poor fuel economy from unburned fuel
- Unburned fuel smell from exhaust
Notes for Chevrolet Traverse
GM 3.6L V6 coil-on-plug failures are common; always swap coil to confirm before replacing.