× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: Slow 02 response 2013 Silverado 5.3 4X4
Posted to Technical Discussion Forum on 1/24/2020 2 Replies

I think the 02 heater monitor will run if allowed at start-up. Can you let vehicle get cold and then turn key to on position and monitor 02 activity? Not sure if 2013 is same way but your 02 voltage would change almost immediately when heater was functioning. Login to read more.

2 Replies Received (View Replies)