Catalytic Converter Tech Feature: Diagnosing P0420 or P0430 DTCs Although modern OBD II technology has simplified catalytic converter diagnostics, it's still important to understand the basics of catalytic converter operation when dealing with a P0420 or P0430 DTC. Gary Goms explores the basics of catalytic converter chemistry and summarizes how common converter failures can be diagnosed. More

Code P0420: The Dreaded Diagnostics of Catalytic Converter Replacement and Oxygen Sensors You just pulled a P0420 from a vehicle indicating the catalyst system efficiency for one of the banks is below threshold. What is next? Could it be just the oxygen sensor? Or, could it be the catalytic converter? These articles will help you understand why the OBDII code was set and what further test must be performed to determine the root of the problem like a coolant leak, oil blow by or other problems... More

Tech Feature: Curbing Catalytic Converter Thefts Catalytic converters have been disappearing at an alarming rate. The theft of these emission control devices is being perpetrated by sleazeballs looking for easy money. A thief can hock a pilfered converter for $25 to as much as $100 depending on the value of the precious metals inside it. More

Tech Tips: Kia Muffler Pipe Drain This bulletin provides information related to a reported "no-start" condition on some Sportage models after they're parked overnight in areas where the temperature is below freezing. More

Nissan: Repair of Exhaust Leak/Noise at Front Tube If you confirm that a 2002-'03 Pathfinder has an exhaust leak or noise coming from the front tube(s), inspect both front tubes for cracking at the welded side seams. More

Tech Tip: Wave Dynamics for Headers and Pipes 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. Sometimes the two markets are identical and... More

Tech Feature: Understanding Your Market Can Increase Performance Exhaust Revenue Depending upon the market your shop is servicing, the term "performance exhaust" can have different meanings. The first market actively seeks out the throaty rumble and chrome-plated look as part of the "vehicle personalization" scene. The second installs an exhaust system that produces the most horsepower for a performance application. Sometimes the two are one and the same, sometimes they're not... More

Tech Tip: Nissan Exhaust Buzz/Rattle on Acceleration If you confirm that there is an exhaust rattle/buzzing noise that sounds like it's coming from the front exhaust tube on an applied vehicle, take the following actions. First, inspect both of the catalyst front tube support brackets for breaks, cracks or missing bolts. If you determine that the support brackets need to be replaced .... More

Tech Tip: How to Select Your First TIG Welder TIG welding, also know as Gas Tungsten Arc Welding (GTAW), has long enjoyed a reputation as a highly skilled, precise welding process. It is frequently used for highly cosmetic applications or those involving thinner metals that require strict heat control. This process is becoming more popular as technology improves and more welding applications, such as exotic metals, require TIG welding. Selecting... More

Pipe Benders: Just Around the Bend I like many people, I have a childhood memory of going on car trips that seemed to last forever. Usually about 15 minutes into the trip, I would ask: “Are we there yet?” This question would be delivered with the accompanying whine that only very small children and some wild animals are capable of making. My parents in their infinite wisdom would turn to me and say: “We’re almost there, it’s just... More

AutoCarePro:News on Facebook