Catalytic Converter Diagnosis
The catalytic converter is probably the most important emission control device on a vehicle because it cleans up the pollutants in the exhaust. Thanks to fuel injection, oxygen sensors in the exhaust manifolds, and a feedback fuel control system, emissions are kept to a minimum. Even so, some pollution is still produced and must be
Performance Exhausts for Late-Model Vehicles
What’s hot in exhaust performance products? Bolt-on free-flowing exhaust systems for diesel trucks, big bore mufflers for sport compact cars, and low restriction street performance mufflers for cars like Mustangs, Pontiac G8s, Dodge Chargers and Chevy Corvettes. The diesel market has been really hot lately. Turbo diesel engines are a popular option in full-size Dodge,
Diagnostic Solutions: Exhausting the Possibilities…Performance Upgrades
Depending upon the market to which an import shop might be catering, the term “performance exhaust” can have two different meanings. The first market actively seeks out the throaty rumble and chrome-plated look as part of the street-driving scene. The second market installs an exhaust system that produces the most horsepower for a performance application.
Mischievous Cats
By definition, a catalytic converter should last the lifetime of the vehicle. It can last this long because a catalyst is something that, just by being present, causes a reaction to other materials without itself being a participant in the reaction. However, real life has proven that the life span of a catalytic converter varies
Oxygen Sensors: Pulse Measurement
Watching an oxygen sensor output on an oscilloscope is like watching a sporting event on television. You get to see the action, but can do nothing about it as it happens. Sometimes you miss the action and want an instant replay. It was a bad call. You saw the interference. If the referee didn’t see
Diagnostic Solutions: Catalytic Converters
The design and function of catalytic converters has changed dramatically since their introduction in 1975. The first “two-way” catalytic converters were oxidizing-only designs that combined hydrocarbon (HC) and carbon monoxide (CO) with oxygen to form water vapor (H2O) and carbon dioxide (CO2). Oxidizing converters were originally manufactured in pellet bed or monolithic “honeycomb” styles. Currently,
Service Guide: F-Series New Model 2004
A bold new look and some subtle changes probably best describe the 2004-and-up Ford F150. To the technician, it is the subtle changes that he or she needs to be aware of. Starting with the 2004 model year, Ford launched a new body style for the F150. The new body style truck is a new
Tech Feature: Performance Modifications…Getting a ‘Handle’ on Your Customers’ Tuning Needs
The sport compact car market is hotter than ever. The market has moved beyond the simple bolt-ons such as wheels, tires, brake rotors and spoilers. It’s not unusual today to see sport compact engines producing upward of 400 horsepower on the street. With so much power under the hood, the challenge is getting the horsepower
Buy or Bend?
What is your strategy for exhaust service?
Viewpoint: Cat Burglars and the Converter Cartel
How many catalytic converters can a battery-powered reciprocating saw cut from a dealer’s lot before the battery runs out? The answer is 18, according to news reports. In one night, 18 converters were removed at a Mentor, OH, Mitsubishi dealership. Other dealerships have been hit, with an average of 15 converters cut loose per night.
Codes & Converters
It is a moral dilemma that many shops encounter on a regular basis. It starts when a good customer comes in with the engine light a blaze. Running your usual diagnostics, you encounter a catalytic converter efficiency code, slow to responded oxygen sensor or some proprietary fuel trim code. Other than the light, the customer
Exhaust Parts
Too Much Weight