Having problems with your 2006 GMC Sierra 1500 2WD ?
CHECK ENGINE LIGHT STAYS ON. WAS TOLD IT WAS THE 02 SENSOR/VALVE. WHERE DO I FIND THIS? GMC SIERRA 1500
YOU HAVE OXYGEN SENSOR LOCATED IN THE EXHAUST PIPE BEFORE CATALYTIC CONVERTER AND OXYGEN SENSOR LOCATED IN THE EXHAUST PIPE AFTER THE CATALYTIC CONVERTER.
You have several 02 sensors. The code tells you which one. There in the exhaust system. If the code refers to the heater part then replace it. If its a lean or rich code then someone will need to diagnose this before replacing it.
Repair Help & Product Troubleshooting for 2006 GMC Sierra 1500 2WD
Tips for a great answer:- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.