Engine and Exhaust
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Oxygen Sensor
Many people hear the term “oxygen sensor" and figure it must have something to do with sensing oxygen. But they don’t really know much beyond that. Let’s break it down; your vehicle ...
Published on: Aug 30, 2026
Making Sense of the O2 Sensor (Oxygen Sensor Replacement)
As you know, today’s vehicles rely on a lot of computers in them to keep them running clean and efficiently. Those computers depend on information delivered by several sensors throughout t...
Published on: Mar 22, 2026
Why did my vehicle fail its emissions test?
We all want to breathe clean air and keep our planet green. One of the ways to do that is by requiring all vehicles with internal combustion engines to pass an emissions test. That’s...
Published on: Aug 31, 2025
Exhaust Service at Norwood Auto Service
Driving around Chicago, we've all heard a car or truck that needs a new muffler. But there's more to the exhaust system than just the muffler. The exhaust system has three main functions:
Safely ge...
Published on: Nov 21, 2022
Exhaust
We've all heard a car or truck in our Chicago neighborhoods that needs a new muffler. But there's more to the exhaust system than just the muffler.{{ image('https://s3.amazonaws.com/www.autonettv.com/...
Published on: Nov 15, 2021
Simple Answers from Norwood Auto Service for Chicago: Exhaust Service
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Question:My car failed its emissions test – what do I need to do?Norwood Auto Service Answer:Let's get this out of the way: a leak in your exhaust system could be deadl...
Published on: Jun 27, 2021
Diesel Exhaust Fluid
Diesel engines are appearing in more and more vehicles in nearly every category from compact cars to pick-up trucks to high-performance luxury vehicles. In much of the world, 40% or more of pass...
Published on: Feb 23, 2020
Diesel Emissions Maintenance
You’ve probably noticed a lot more vehicles being offered with diesel engines. Diesel is a very popular choice in much of the world. North America is just starting to close the gap b...
Published on: Nov 17, 2018