Engine Compartment Archives - Page 68 of 72 - UnderhoodService
Tech Tip: Volkswagen Coolant Pump Leakage

Coolant pump seals are designed to use coolant as a lubricant. This design intentionally uses a small amount of coolant to coat the seals during pump operation. Any excess coolant that accumulates will exit the weep hole when the engine cools down.

Honda Brake Service: Successful Jobs Are in the Details

You can’t argue that Hondas aren’t popular cars that have earned customer loyalty by giving many miles of trouble-free service to their owners. It’s safe to say that Honda has changed the way the world builds cars. And to think they’ve done it in 30 years is truly remarkable. All machines, even the good ones,

Win a Harley-Davidson from Airtex in Pump it Up Sweepstakes

Airtex Products "Pump it Up" Sweepstakes offers the chance to win a 2006 Harley-Davidson Sportster or 32" Sylvania television just for selling or installing Airtex fuel and water pumps.

Brakes 101

Welcome to Carley’s Refresher Course on Basic Brake Service

Performance Upgrades: Tuning, Tweaking & Boosting Your Way to New Profits

The import performance market offers a unique service opportunity for you. Import vehicle owners are accessorizing their vehicles like never before, and many are buying aftermarket performance parts in record numbers. Though many of these parts are sold to people who can install the parts themselves (things like wings, spoilers, lights, big bore mufflers, etc.),

Tech Tip: Water Pumps – Why They Fail and When to Replace Them

If you’ve wondered how much work a water pump must do, remember that only about 30 percent of the heat energy produced by combustion results in mechanical energy. That estimate, of course, is a mathematical comparison between the heat value of the gasoline going into the engine, and the heat value of the mechanical energy coming out of the engine. The remainder of combustion heat must then be dissipated into the atmosphere through the exhaust, lubrication and cooling systems.

Inspection by the Numbers

As the saying goes: “The devil is in the details”. Another saying is: “The truth is in the numbers.” When performing a brake inspection, both are true. Replacing the calipers and rotors with every brake job may not be the cure all for ending all for fundamental brake repair problems. An inspection of every component,

Servicing Import ABS Systems

Import anti-lock brake systems (ABS) are pretty much the same as domestic ABS systems. In fact, the same OEM suppliers who make the ABS system components for import vehicle manufacturers also make them for domestic vehicle manufacturers. The differences that do exist are typically limited to calibration, diagnostic codes and procedures, and wiring. The ABS

Selling Services: Selling the Scope to Your Customer

While replacing a blown head gasket and re-torquing the head bolts, you reach into your tool box and grab your 1/2-inch impact and rattle the bolts down. Just kidding! You would reach for your torque wrench and accurately follow the manufacturer recommendations for torque patterns and values. To guarantee a quality repair, an accurate torque

Timing Belt Replacement: Safeguarding Your Customers’ Vehicles From Major Engine Damage

Although better materials and manufacturing technology have extended the timing belt replacement intervals on many nameplates, timing belt replacements remain one of the most profitable scheduled maintenance services. They continue to be profitable because many other scheduled services like spark plug replacements, filter replacements, coolant changes and transmission fluid changes can be packaged with a

Rotor Debate: Resurface or Replace?

More often than not, many rotors today are being replaced when the brakes are relined – and some motorists are complaining that new rotors really aren’t necessary. Resurfacing can usually restore the friction surface on worn rotors to like-new condition, unless a rotor is worn down too far to be safely resurfaced or has cracks,

Causes & Cures for Disc Brake Problems

There are as many causes as there are cures for disc brake problems. Brake pedal pulsation tops the list, while disc brake noise and brake pedal sensitivity follow as second and third place contenders. Most of these problems can be avoided if technicians have the right parts and follow the correct procedures. Let’s begin by