Using Caster to Properly Align Vehicles
Every story has an angle, and this one is no exception. In this case, we’re looking at one of the fundamental wheel alignment angles: caster. Caster is defined as the forward (negative) or rearward (positive) tilt of the steering axis as viewed from the side. Caster is measured in degrees from an imaginary line perpendicular
Rotating Electrical Parts Back to the Seller
Fighting the Urge To Return Electrica Components
Diagnosing Automatic Transmission Complaints
Automatic transmissions are a mystery to most motorists. They may know the transmission requires some kind of fluid, but have probably never checked the level or even looked for the dipstick unless they drive an older vehicle with a leaker. When internal problems cause the transmission to act up, it takes a fair amount of
Manual Tranny/Clutches: Pre-Installation Inspections Boost Clutch Performance & Reduce Warranty Claims
Because a good “stick shift” driver can always squeeze a few more miles per gallon out of a manual transmission or otherwise out-perform their automatic transmission counterparts, it’s no wonder that clutch replacements continue to be a good business for most import repair shops. In most cases, a routine clutch replacement requires very little in
How Tread Design Impacts Wear, Traction, and Noise
When delving into the world of tread designs, one thing that is always fascinating is the size of the contact patch through which the tread design must roll. On an average-size passenger car tire, the contact patch is about the size of a 4×6-inch postcard. In total, all four contact patches reach about the size
Internal Engine Repairs: Begin with Diagnosing Engine Failure Culprits
Saab engine technology has evolved through the years, but the same basic design of the original B202 engine is still used in today’s Saabs. When the 16-valve 2.0L engine (B202) was developed in 1984, I was one of 10 people chosen from the East Coast area by Saab in the United States to attend a
Timing Belt Replacement on a Sideways Engine
A timing belt failure can be a serious problem, not only because it strands the motorist, but also because of the extensive engine damage it can cause. If the engine is an “interference” application, a timing belt failure may result in bent valves, damaged pistons and a very expensive repair bill for your customer. For
Servicing Saturns: A Different Kind of Car Repair?
On January 7, 1985, Saturn was born. That day, Roger Smith, the president of General Motors, announced the decision to create a whole new car company from the ground up. There were 99 people chosen to create a vision of what GM needed to do in order to prosper in the small car business into
Medium-Duty Truck Clutch Repair
What is a medium-duty truck? The industry defines it as a vehicle with a Gross Vehicle Weight of 14,000 to 26,000 lbs. At 14,000 lbs., most heavy-duty one-ton trucks qualify as a medium duty vehicle. In light- and medium-duty trucks, the automatic transmission is ever increasing in popularity and numbers. So why am I talking
Ball Joints & Bushings: Worn Components Take Their Toll on Advanced Suspension Technologies
Too often, shop owners and technicians alike assume that suspension systems haven’t changed much in the past 20 years. In reality, nothing could be farther from the truth because today’s import vehicle may incorporate a number of technologies that can be affected by worn steering and suspension components. To illustrate, we’re beginning to see electronic