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Tech Tip 0139

Filtering GM's Duramax Diesel: Some Tips on Servicing the Duramax Turbo Diesel

Tech Tip #139

Diesel engines have a healthy appetite for air.  Couple that with a turbocharger, and the engine is really inhaling a lot of air.  Any restriction in the airway can result in some major engine or turbocharger damage...

Tech Tip 0138

Brake and Suspension Solutions

Tech Tip #138

Diagnosing a squeak, rattle or knocking condition can be a frustrating experience.  The first step in the diagnostic process is to always make a road test with the vehicle owner...

Tech Tip 0137

Cooling Systems: Good Maintenance Insures Good Performance

Tech Tip #137

Maintaining the proper engine coolant temperature is imperative, especially considering today's computerized engine control systems. Failure to achieve a determined coolant temperature can result in poor fuel economy, high emissions output or costly engine damage...

Tech Tip 0136

Brake Fluid Facts: It May Be Time For A Complete System Flush

Tech Tip #136

With a customer complaint of a fading brake pedal, most technicians automatically assume friction as the culprit.  Installing a new or different type of friction formulation may not satisfy the pedal fading symptoms, especially if the brake fluid is contaminated...

Tech Tip 0135

Fuel Quality Issues: Rough Idle and Misfire Following a Hot Restart

Tech Tip #135

Diagnosing engine performance problems can be a challenge.  Heat and fuel related conditions can make the engine behave erratically, resulting in a rough idle or misfire...

Tech Tip 0133

Tire Pressure Monitoring Systems: A Challenge for the Tire Technician

Tech Tip #133

Tire pressure monitoring systems (TPMS) will become a daily part of our service activity.  Maintaining the proper tire pressure is imperative for vehicle stability and control...

Tech Tip 0134

Troubleshooting ABS Systems

Tech Tip #134

When the Anti-Lock Brake System (ABS) was first introduced to the automobile, many technicians were very skeptical...

Tech Tip 0132

Factory Solutions: Putting the Brakes on Elusive Brake Symptoms

Tech Tip #132

A customer complains about a brake performance condition involving a shudder, vibration, or squeal during brake application.  The technician's focus is on the normal conditions and procedures that are necessary to alleviate the symptoms...

Tech Tip 0131

Troubleshooting Belt Noise: Installing a Second Belt Is Not the Solution

Tech Tip #131

A customer brings a vehicle in for a routine service and a belt condition.  Without diagnosing the symptom, the technician recommends and installs a new serpentine drive belt. All is quiet in the engine compartment...

Tech Tip 0131

The Challenge of the Diagnosis: Unique Brake and Suspension Solutions

Tech Tip #130

Nothing is more frustrating than performing a service on a vehicle and having the customer return with a complaint. The symptoms may involve a brake noise condition, a pulsation, premature wear, a suspension related condition, or any one of several symptoms. Diagnosing noise-related symptoms can be a frustrating endeavor.

Tech Tip 0129

Filtering Ford's Power Stroke: Installing the Air Filter Can Be a Challenge

Tech Tip #129

Filtering Ford’s turbocharged diesel engines has proven to be a challenge. They have a thirsty appetite for air, and will get the needed volume by some means. In previous years, the Ford trucks have encountered numerous failures with air filters, some resulting in turbocharger and engine failure. When the filter became restricted, it would often be pulled from the air box, allowing unfiltered air to enter the engine. In extreme situations, contaminates could...

Tech Tip 0128

Solving Electrical Problems: Check the Integrity of the Connections

Tech Tip #128

When an electrical failure involves multiple circuits, two important steps should be taken. If the vehicle involved is of a recent production date, the first step should involve researching factory service bulletins for campaigns or field fixes. The second step should involve reviewing a wiring diagram to determine if the failed accessories or components share any power feed or ground circuits. These steps can reduce the diagnostic time and pinpoint a problem early in the diagnosis...

Tech Tip 0127

Pattern Failures: Plagued with Problems by Design

Tech Tip #127

Occasionally you will encounter a system or component that develops a history of pattern failures that can elude your best efforts. Problems or premature failures can result from a manufacturing defect with a component, a problem due to the design of the system, or a secondary system malfunction may lead to a premature component failure. When the industry encounters the same failures or circumstances, then most likely you are dealing with a design issue. It is unlikely that multiple manufacturers of the same part would make the same manufacturing mistakes...

Tech Tip 0126

Filtration Systems: Dealing with Some Unique Filter Concerns

Tech Tip #126

Imagine changing the oil and filter on a customer’s vehicle and the engine developing a low or no oil pressure condition. To correct the problem requires several hundred dollars to cover the cost of parts and labor. Is it possible for this to happen during a routine oil and filter change? Unfortunately, it can happen. While changing the oil filter on a 2003 or newer 6.0L Ford diesel engine...

Tech Tip 0125

Chevy Truck Brakes: Solving Pattern Complaints and Failures

Tech Tip #125

When the hotlines and brake technicians are inundated with multiple complaints of the same nature on a given series vehicle, it’s almost certain that the symptoms are a normal characteristic for that platform. While the symptoms may be normal for that vehicle, the owner may not be that understanding. For example, when a customer has a brake job performed on their vehicle they expect a good pedal feel, a quiet stop, and no pedal pulsations. Anything...

Tech Tip 0124

Servicing Dodge's Turbo Diesel: Air Filter and Fuel System Precautions

Tech Tip #124

Turbo-charged diesel engines have a healthy appetite for air, consuming large volumes of it. Keeping the air system clean is the key to good engine performance. With an air system restriction, some major engine performance conditions will occur and damage to the system is almost certain. In most cases, the engine will get the needed air supply before progressing to an engine stalling condition...

Tech Tip 0123

Oil Filter Leakage: Honda's SUV Fires Linked to Botch Oil Changes

Tech Tip #123

The automotive information network has been filled with warnings and cautions concerning the 2003– 2004 Honda CR-V Sport Utility Vehicles and fires occurring after an oil change. When twenty-seven of the mentioned vehicles turn into an inferno following a lube service, it naturally causes concern. We have received reports that some lube shops are refusing to perform a lube service on the mentioned...

Tech Tip 0122

Crankcase Ventilation: Yesterday's Technology Poses Some New Challenges

Tech Tip #122

The positive crankcase ventilation system (PCV) is yesterday’s technology with a new set of challenges. While most consider the PCV system a simple and uneventful part of the emission control system, it can have a detrimental effect on the overall engine performance. A component failure can result in an array of problems including rough idle, surging, stalling, a sticking throttle plate, or excessive oil consumption...

Tech Tip 0121

Fuel System Maintenance: Following a Scheduled Service Can Prevent Costly Repairs

Tech Tip #121

Too little consideration is given to basic maintenance and the effect that some of the seemingly insignificant components can have on the system. Fuel filter maintenance is a good example. Many vehicle owners neglect the fuel filter as a service item, and technicians often fail to recommend a fuel filter replacement during normal service intervals. From previous experiences...

Tech Tip 0120

Pattern Failures: Solutions for Factory Induced Brake Problems

Tech Tip #120

Dealing with brake system complaints can be a challenge. Don’t complicate the problem by getting so anxious to fix the problem that you fail to take the time necessary to accurately diagnose the symptoms. It’s easy to fall into a pattern of responding to the customer’s request for a service...

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