Emissions Archives - Page 10 of 24 - UnderhoodService
Quick Check Diagnostics Now Available from AVI

Instructor Jim Wilson has put together a must have class for every technician out there. This class will help you when it takes longer to diagnose a job than you would like. It covers a step-by-step approach to engine diagnostics.

Turbocharger Technology Continues to Improve

With the ability to increase fuel economy by up to 20% on gas vehicles and up to 40% on diesel vehicles, manufacturers have resorted to turbochargers to compensate for lowered engine displacement. Additionally, the improvements on turbocharging technology have increased the number of turbocharged vehicles on American roads. Some turbocharger manufacturers have even projected the number of turbocharged vehicles in the U.S. to quadruple in the next five years.

Ford Wins International Engine of the Year Awards 2012 in Dominant Style

The small but powerful 999cc, three-cylinder turbo unit wins Ford its first ever Engine of the Year Award

Exhaust System Welding & Fabrication

Even as direct-fit exhaust systems are dominating the replacement exhaust market, there is still a need for exhaust fabrication that includes welding. Being able to weld exhaust system components is not about creating less-expensive alternatives for your customers. Being able to weld and fabricate components gives you the flexibility to provide your customer with the

Tech Tip: Every MAF Sensor Needs a Breath of Fresh Air

Sensor replacement is critical to engine efficiency because a dirty MAF sensor will not respond as fast to air flow changes as a clean sensor.

The Ins and Outs of Variable Valve Timing (VVT) Systems and Their Role in Vehicle Emissions

By the early 1990s, almost all import automotive manufacturers had a successful variable valve timing (VVT) system in production. These systems offered higher performance from smaller displacement engines at higher rpm. Do you know that VVT is playing a direct role in vehicle emissions and the way gases are burned in the combustion chamber?

Pulling Codes: The Story of Code P0456

The Smallest of Details? This month’s Pulling Codes documents the infamous P0456 code — 0.20 leak detected. A small leak code can be the most challenging for any technician, so Carlton Banks gives his suggested plan of attack.

Expect to See More Turbocharged Vehicles in Your Shop

As gas prices remain high this summer driving season, Honeywell Turbo Technologies says it is working with auto manufacturers to meet the increase in demand for affordable and fuel-efficient downsized turbocharged engines.

Tech Talk – Engine Innovations to Reach Government Fuel Standards

In recent years, the primary driving force behind engine innovation has been the never-ending quest for better fuel economy with little or no sacrifice in performance. Government regulations and rising fuel prices are forcing automakers to develop new technologies and powertrains that squeeze more power out of every drop of fuel while producing less pollution and greenhouse gas (carbon dioxide) emissions.

Tech Tip: Dodge Neon Sport Code P0340 Intermittently

Customer complains the vehicle bucks and misses intermittently while driving. Code P0340 is stored. This code may be caused by the camshaft position sensor.

A 360° Look Into the GM 60° 3.1L Engine

Over the years, GM has saved a bundle on manufacturing the 3.1L engine by using the production line tooling it originally developed for the 2.8L V6. By simply changing the bore diameter, the displacement of the same engine block could now be increased for more power and torque.

Oxygen Sensors Give NASCAR Teans New Control of Night Racing with Changing Air Density as Johnson Wins 200th for Hendrick

Jimmie Johnson and No. 48 out-dueled a charging Denny Hamlin and Tony Stewart for the checkered flag at Darlington Raceway’s grueling Bojangles’ Southern 500 Saturday night May 12, for Hendrick Motorsports’ 200th NASCAR Sprint Cup Series win.