The Auto Guys
135 South Edgeware Rd. St.Thomas ON N5P 4C4 │ 519.631.7117

Engine and Exhaust

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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: Jul 16, 2023

The Auto Guys Automotive Tips: Diesel Emissions Maintenance

You’ve probably noticed a lot more ON drivers driving vehicles with diesel engines. Diesel is a very popular choice in much of the world and is becoming more commonplace here. North America is j...
Published on: Nov 01, 2020

Exhaust Service at The Auto Guys

We've all heard a car or truck in our St. Thomas neighborhood that needs a new muffler. But there's more to the exhaust system than just the muffler.The exhaust system has three main fu...
Published on: Jul 21, 2019

PCV Valve Replacement at The Auto Guys in St. Thomas

The PCV valve is a little, inexpensive part that does a big job for St. Thomas drivers and our environment here in ON. PCV stands for Positive Crankcase Ventilation. The crankcase is the bottom area o...
Published on: Jul 14, 2019

The Auto Guys Automotive Tips: Oxygen Sensor

Many St. Thomas drivers hear the term “Oxygen Sensor” and figure it must have something to do with sensing oxygen, but don’t really know much beyond that. Let’s break it down: ...
Published on: Dec 30, 2018

The Auto Guys Automotive Tips: EGR Valve

It is pretty amazing how manufacturers have been able to consistently build more vigorous engines in cars that get better fuel economy while at the same time meeting increasing environmental stan...
Published on: Oct 14, 2018

Simple Answers from The Auto Guys for St. Thomas: Exhaust Service

Question: My car failed its emissions test, what do I need to do?The Auto Guys Answer:Let’s get this out of the way: a leak in your exhaust system could be deadly. If St. Thomas drivers smell e...
Published on: Sep 30, 2018

The Auto Guys Automotive Tips: Emission System Service

All modern vehicles on ON expressways come with an emissions system. Their purpose is to reduce the amount of harmful emissions getting into the atmosphere. The system draws in fresh air, collects vap...
Published on: Jun 18, 2017