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Tech Stuff

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Some Diagnostics Hurt Your Brain... Fixing Difficult and Perplexing Problems

I enjoy working through diagnostics, with my favorite being driveability concerns. The most common diagnostics that I perform relate to check engine lights, and lately some of those have been very challenging.

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Profiting from TPMS Service

Tire pressure monitoring systems (TPMS) are a significant advance in driving safety, but most motorists are unaware of the system’s importance or what to do when the warning light comes on.

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Addressing Carbon Buildup in GDI-Equipped Vehicles

Driven by strict emission laws and a growing demand for low fuel consumption, an increasing number of vehicles equipped with gasoline direct injection systems (GDI) are now being seen on roads today. However, a common complaint about these vehicles has been the buildup of carbon deposits inside the cylinder head.

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Complete Brake Service Tips: Service Guidelines to Aid in Your Diagnosis

Brake service requires more than simply replacing rotors and pads. Rather than repairing the obvious issue(s), we need to determine the cause of the concerns to avoid repeating the problem. Taking the time to inspect the system will avoid comebacks and result in a satisfied customer. This brief article provides service guidelines as well as a variety of tips to aid in your diagnosis.

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Oxygen Sensor Heaters: How do you Know if that Heater Fault Code is Real?

When the check engine light is on and the scan tool displays oxygen sensor codes, you already suspect that the real problem might be something other than the oxygen sensor. When the codes indicate a problem with the oxygen sensor heater, that narrows the possibilities quite a bit.

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Doing the Right Thing

Years ago, I wrote an article for our sister publication Modern Tire Dealer. I had the opportunity to spend a bit of time with the folks who ran a community-help program that was conducted by a tire dealer in cooperation with a local radio station, all based in a western New York state metropolitan area. The program was called “Captain Friendly.”

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4WD Shifts Without Command

This bulletin applies to 2004-2011 Chevy Colorado and GMC Canyon 4WD vehicles. If you have a customer that complains about an intermittent unrequested transfer case mode shift, scan for DTCs and correct as needed.

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Tool Review – GTE MasterPry Pry Tools

Today's vehicles feature a lot of plastic, in terms of panels and snap-in clips. Popping panels from interiors or trying to remove push-pin plastic clips that retain headliners, seals, etc., can be dicey when using metal tools such as screwdrivers.

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Wheels and NVH -- How to make a vehicle ride like new again

When driving a new vehicle, one of the first things you notice is how smoothly it rides. That new-car ride is mostly the result of a tremendous amount of engineering that goes into eliminating noise, vibration and harshness, otherwise known as “NVH.” Of course, as that smoothness gradually fades, most people assume it’s just a consequence of the car’s age and mileage.

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Mazda Skyactiv Technology -- What it is, and What it Has Meant to Engine Packages

I am sure that by now almost all of us have seen or heard the advertising of Mazda’s Skyactiv technology, but how many of us actually understand what it means? If you’re a full-time Mazda tech or just a Mazda aficionado, then this will just be a lot of review for you. But for the average tech who doesn’t specialize in just Mazda’s latest vehicles, I want to explain what is meant by Skyactiv technology, and what changes it has meant to the engine packages.

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