Johnson's Automotive Repair, Inc
598 Olathe St, Aurora, CO 80011 303.360.6111

Engine and Exhaust

Alt + /

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: Mar 02, 2025

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: Jan 26, 2025

Catalytic Converter Replacement

Many of us have become aware of how important it is to keep our planet’s air clean, and your vehicle has a key component that helps do just that: the catalytic converter.  It’s in the...
Published on: Feb 04, 2024

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: Apr 16, 2022

Exhaust Service at Johnson's Automotive Repair, Inc

Driving around Aurora, 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 get...
Published on: Jun 25, 2021

Exhaust

We've all heard a car or truck in our Aurora 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/m...
Published on: May 16, 2021

The Test Your Vehicle Can Fail (Emissions Tests)

Clean air quality is something that helps all of us thrive here on Planet Earth.  And considering that motor vehicles are a contributor to air pollution, emissions tests in the U.S. and Canada ar...
Published on: Dec 07, 2020

PCV Valve Replacement at Johnson's Automotive Repair, Inc in Aurora

The PCV valve is a little, inexpensive part that does a big job for Aurora and our environment here in CO. PCV stands for Positive Crankcase Ventilation. The crankcase is the bottom are...
Published on: Aug 19, 2020