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: Sep 27, 2026
Rumble from Down Under (Muffler Replacement)
We’ve all noticed them at one time or another on the street: a car or truck that drives by and the deep roar from their exhaust system sounds like a drag racer on the line. But what happen...
Published on: Dec 14, 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: Sep 15, 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: Aug 11, 2024
Sounds Like a Hot Rod (Noisy Exhaust System)
Driving along, your exhaust system's rumbling so loud that people turn and stare at you pass by. You're wondering when the police are going to pull you over for illegal noise.
Your mind immedia...
Published on: Oct 22, 2023
Sounds Exhausting! (Exhaust Service)
Most of us know a bad muffler when we hear it. That loud, rumbling sound is unmistakable. Did you also know you can get a ticket for driving around with a loud exhaust system?
If your exhaust s...
Published on: Sep 18, 2022
Positive Crankcase Ventilation – PCV Valve Service at Auto Physicians
Hello Maryville! Did you know that the first federally-mandated emissions control device was introduced in the 1960's? The Positive Crankcase Ventilation valve, or PCV valve, has been installed in TN ...
Published on: Sep 05, 2021
The Sign of the Shield (Heat Shield Repair and Replacement)
Even in the months where temperatures are cooler, heat is still an enemy of your vehicle. When your engine runs, it creates heat, so there are numerous heat shields that protect other parts from...
Published on: Apr 25, 2021