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No More Free Tire ­Rotations!

Tire rotation is a cornerstone of vehicle preventive maintenance and tire longevity. It is a well-proven fact that tire tread life can be greatly enhanced by regular and timely tire rotation. During rotation, each tire and wheel is ­removed from...

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ASE G1: How To Measure Cold Cranking Amps, Reserve Capacity

The ASE G1 test contains 55 scored, job-related questions, 15% of which will concern electrical maintenance and repairs. From the ASE G1 study guide, you will need to know how to: • Perform battery tests (load and capacitance); ­determine needed...

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ASE A5: Brake Fluid And Bleeding Sequence

The ASE A5 Test includes a portion on brake fluid, bleeding, flushing and leak testing. You must know how to: • Diagnose poor stopping, pulling, dragging, or incorrect pedal travel caused by problems in the brake fluid; determine needed repairs. •...

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When Timing Is Everything: A Look At The 2.5L, 2.0L Powerplants

Last month, we looked at the timing chain setup on the Audi 3.2L engine and saw how a lack of oil changes can adversely affect the tensioners and cause engine failure. We’ve also seen similar issues with the timing chain setups on the 2.5L 5-cylinder...

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Modern Charging Systems: Cover All The Bases During the Diagnostic Process

To quote a familiar situation: “My customer’s car is now on its third alternator in six months and my jobber store refuses to ­warranty a fourth.” In other words, the parts supplier believes that an underlying problem is causing these alternators...

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Audi Fuel System: MIL On/Multiple Low Fuel Pressure DTCs

Due to fuel intrusion into the low-pressure ­system fuel pressure sensor (G410), a false signal may be sent to the controller, resulting in a reading that is out of tolerance. Model: 2007 Audi A4 Sedan V6-3.2L Scenario: The MIL is on and one or...

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Your Guide to the Kia Brake Job

Kias will provide little challenge for any tech currently handling basic brake work. All it takes is paying attention to details and good work habits to make it profitable. An occasional long pedal could be a master cylinder bleeding down, which...

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Toyota Avalon Alignment Spec: 2005-‘11

The Toyota Avalon is sometimes called the “Japanese Buick” due to its size and plush ride. However, the Avalon’s overall suspension design does not vary that much from Toyota’s smaller vehicle platforms. The Avalon comes in four trims:...

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BYOBP Brake Jobs: This Has To Stop

Recently, I was sent a link to a TV commercial on YouTube for a mobile brake business. I will post the link on BrakeandFrontEnd.com. The commercial featured a puppet claiming that the business could save a driver $500 on brakes because shops mark up brake...

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Redline Detection Seeks Nominations for 2nd Annual Redline Rock Star Performance Award

Redline Detection is encouraging anyone who works with, or knows, a talented technician to nominate him or her for the second annual Redline Rock Star Performance Award. The award recognizes a technician for their commitment to family, community and...

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Automotive Lift Institute (ALI) Elects 2015 Board

Jerome Lentz of Challenger Lifts (Louisville, Ky.) has been elected chairman of the Automotive Lift Institute (ALI) Board of Directors for 2015. Voting took place at ALI’s annual membership meeting Nov. 3 in Las Vegas. Lentz’s 2015 term will be...

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Top 5 Tools: John Forro, AST, Automotive Service Technology in Hinckley, OH

John Forro AST, Automotive Service Technology Hinckley, OH ALLDATA Information System: I use this system daily for researching labor pricing, wiring schematics, circuit descriptions, torque specs, etc. One doesn’t need to memorize all the information...

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Home Cooling How Long Should a Brake Job Last?

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Every technician knows it’s impossible to estimate how long a set of brake pads will last. But, due to changing ownership cycles, your customers are developing new expectations.
 
According to R.L. Polk, the typical consumer held onto a vehicle for 57 months in 2012. This is up from 38 months in 2002. So, if a customer drives 15,000 miles a year, the customer will accumulate 23,000 more miles before they trade it in. These extra miles could mean an extra front brake job. These repair incidents create points of reference that form certain customer expectations that were not there just a decade ago.
 
But, in some cases, reality may not meet customer expectations. Why? Each time the brakes are serviced, the pads could be compromised by the previous brake jobs that did not restore the brakes to like-new condition.
 
The brake hardware might not have been ­replaced during the first brake job. Halfway through the customer-expected life of the pads, the abutment clips may have corroded and lost their spring. The guide pins could have been neglected on the next brake job. Now, the pads wear really unevenly and the customer will notice that mileage between pad changes has significantly dropped. Performing a complete brake job will break the cycle.
 
A normal customer-expected wear interval cannot be achieved if a low-quality brake pad set is used. One area that is consistently compromised is the quality of the backing plate and how it r­etains the friction material during the life of the brake job.
 
Keeping a friction material attached to a piece of metal under more than 1,400 psi and shearing forces is not something to take for granted when selecting a replacement brake pad. If the attachment method and implementation is substandard, it can result in noise and, eventually, failure of the pad before it’s worn.
 
This is called edge lift or delamination. It’s caused by failure of the attachment method and can be hastened by corrosion. The first symptom of the failure is noise. The noise is a result of the separation, causing ­irregularities in the braking surface and the pad now having completely ­different NVH properties.
 
Some manufacturers are using mechanical ­attachment methods that can prevent delamination in a brake pad. The technology allows brake pads to be run down to the last few millimeters of friction material. The bond can be resistant to shear loads, corrosion and heat. This makes for a pad that can meet or exceed a customer’s expectations.

In a recent survey of technicians and shops ­conducted by Brake & Front End magazine, noise was the primary reason why a customer brought their ­vehicle in to have the brakes inspected. They did not bring it in for a low-priced brake job. Customers are concerned about safety, not a low price. They can see the value in getting more miles out of a complete brake job, over a cheap brake job that has them returning to you sooner than expected.  
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Andrew Markel

Andrew Markel

Andrew Markel is the editor of Brake & Front End and Servicio Automotriz magazines. He has been with Babcox Media for more than 12 years. He is a technician and former service writer and holds several automotive certifications from ASE and ­aftermarket manufacturers. He can be reached at [email protected]
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