Cottman Transmission & Total Auto Care
11780 Holly Auto Center Lane, Waldorf, MD 20601 301.645.4055

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: Sep 29, 2024

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: Sep 01, 2024

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: Jan 31, 2024

Exhaust Service at Cottman Transmission & Total Auto Care

Driving around Waldorf, 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: Aug 31, 2023

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: Jul 31, 2023

Simple Answers from Cottman Transmission & Total Auto Care for Waldorf: Exhaust Service

{{ image('MzQy') }} Question:My car failed its emissions test – what do I need to do?Cottman Transmission & Total Auto Care Answer:Let's get this out of the way: a leak in your exhaust system c...
Published on: Dec 14, 2022

PCV Valve Replacement at Cottman Transmission & Total Auto Care in Waldorf

The PCV valve is a little, inexpensive part that does a big job for Waldorf and our environment here in MD. PCV stands for Positive Crankcase Ventilation. The crankcase is the bottom ar...
Published on: Oct 16, 2022

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: Nov 15, 2021