AutoTranz Transmissions and Auto Repair
9990 W State St. Ste 110 Boise ID 83714 | 208.853.1200

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 07, 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: Mar 15, 2024

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: Dec 06, 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: Oct 30, 2023

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: Dec 08, 2022

PCV Valve Replacement at AutoTranz Transmissions and Auto Repair in Boise

The PCV valve is a little, inexpensive part that does a big job for Boise and our environment here in Idaho. PCV stands for Positive Crankcase Ventilation. The crankcase is the bottom a...
Published on: Jun 29, 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: Apr 03, 2022

Simple Answers from AutoTranz Transmissions and Auto Repair for Boise: Exhaust Service

{{ image('MzQy') }} Question:My car failed its emissions test – what do I need to do?AutoTranz Transmissions and Auto Repair Answer:Let's get this out of the way: a leak in your exhaust system ...
Published on: Dec 01, 2021