J&M Auto Center
693 Grayson Highway St A, Lawrenceville, GA 30046 678.407.9904

Engine and Exhaust

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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: Jun 21, 2023

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: Jun 11, 2023

PCV Valve Replacement at J&M Auto Center in Lawrenceville

The PCV valve is a little, inexpensive part that does a big job for Lawrenceville and our environment here in GA. PCV stands for Positive Crankcase Ventilation. The crankcase is the bot...
Published on: Aug 20, 2022

Exhaust

We've all heard a car or truck in our Lawrenceville neighborhoods that needs a new muffler. But there's more to the exhaust system than just the muffler.{{ image('https://s3.amazonaws.com/www.autonett...
Published on: Apr 18, 2022

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: May 23, 2021

Exhaust Service at J&M Auto Center

Driving around Lawrenceville, 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: Saf...
Published on: Feb 26, 2018

EGR Valve

It is pretty amazing how auto makers have been able to consistently build more powerful engines in vehicles that get better fuel economy while at the same time meeting increasing environmental standar...
Published on: Apr 01, 2017

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: Oct 14, 2015