Import Cam Phasing Systems: Variable Valve Timing
One of the ways automakers squeeze more horsepower and torque from an engine is adding variable valve timing (VVT) to the valvetrain.
Top 10 Changes To Vehicles With Stop/Start Systems
In the shop, it is essential to understand what is different on stop/start vehicles and how it might change your diagnostic approach.
Matching The Components To The Application: Ride Control System Protocol
A shock absorber is designed to dampen oscillations in leaf or coil springs by enclosing a piston and rod assembly inside a cylinder filled with oil. The shell or casing generally mounts on the axle or control arm while the piston rod assembly mounts to the frame.
A New Look At Cooling System Technology
Auto manufacturers are continuing to increase fuel economy and power output by changing how the cooling system operates. Make sure you’re up to date on modern cooling system technology.
Diagnosing Electrical Power Steering (EPS) Issues
Electric steering is a non-hydraulic system assisted by an electric motor operated by a software-driven power steering module.
Trailer Brakes: Connector Outlet Electrical Diagnostics
The owner of a 1999 Dodge 2500 Ram pickup called me mid-summer with an ABS and check engine warning light problem on his instrument panel and no trailer brakes on his fifth-wheel horse trailer.
Temperature & Electrical Diagnostics
Engine coolant temperature is often a primary component of the “enable criteria” needed to run diagnostic monitors and store diagnostic trouble codes and related freeze-frame data.
Servicing A Gasoline Direct Injection System
Because gasoline direct injection (GDI) was widely introduced during the 1990s, the configuration of any GDI system will vary according to age and application.
Servicing The Cadillac Escalade Autoride System
Autoride is an electronic suspension control system that independently controls each of the four shock absorbers in order to control the vehicle ride characteristics. The electronic suspension control (ESC) system is capable of making these changes within milliseconds.
Modern Charging Systems – Cover All The Bases During The Diagnostic Process
To quote a familiar situation: “My customer’s car is now on its third alternator in six months and my jobber store refuses to warranty a fourth.” In other words, the parts supplier believes that an underlying problem is causing these alternators to fail and, therefore, won’t warranty more alternators. While we occasionally experience a sequence
