Specialty Engine Oils: Are They Really Different?
After 75,000 miles, cars can begin to show their age. They may consume a bit more oil or oil could leak past intake valve stem seals. Higher mileage specialty motor oils typically contain additives that condition the rubber seals to help reduce oil consumption.
Brake Lubricants
How a little lubrication can turn you from a zero to a hero.
Nissan: Driveability Issues
Earning Loyal Customers Through Accurate and Efficient Diagnostics This article will take a look at some of the common problems that cause check engine lights to illuminate and/or driveability problems on the popular Nissan line of vehicles. With many states adopting statewide OBD II emission inspections, the days of ignoring the light are over. We’ll
A/C Update: Bad A/C Blowers & Fuses
One component air conditioners and heaters share in common is the blower motor. The blower motor is usually located in the Heating, Ventilation and Air Conditioning (HVAC) housing under the dash. The blower motor spins a squirrel cage fan that delivers both cold and hot air. If the driver wants cold air and turns on
Tech Tip: Diagnostic Information To Consider Before Replacing an A/C Compressor
A recently completed analysis of air conditioning compressors in General Motors vehicles that had been replaced for noise, vibration and insufficient cooling concerns has indicated a high number of "no trouble found" results.
The Future Of Climate Control
What Role Will Alternative Refrigerants Play? There has been a lot of discussion lately about the future of automotive refrigerants and their impact on the environment. Ozone depletion is no longer the main concern. Now it’s global warming. Last year was the warmest year on record. Average temperatures all across the globe are on the
AC Update: Finding and Fixing Leaks
Finding refrigerant leaks is a major aspect of A/C service. It makes no sense to recharge a leaky system with refrigerant if it will soon leak back out. Ultraviolet dyes can make even the smallest leaks clearly visible. But not all OEMs approve of their use. The domestic OEMs (Ford, GM and Chrysler) all use
Diagnostic Dilemmas: Fuel System Foul Ups
Are the fuel pump returns from your shop going up? Understanding the root cause of technician errors is the first step to successfully managing fuel system parts purchases and returns. Over the years, vehicle fuel systems have become more complex as OEs look to improve fuel burning and engine efficiency. And during that time, industry
Customer Q&A – 1991 Honda, A/C Flooding and Rat’s Nest
I’ve had my 1991 Honda in five times since they replaced the evaporator/compressor because the water is draining inside the car. Not once after it left their hands has it drained outside the car. And, yet, I’ve had the car for 10 years and it always drained outside — until April.
Diagnostic Solutions: Upgrades That Deliver Performance and Pizzazz
Checking the Basics Saves Time When Chasing Check Engine Codes