The water pump is a vital part of the coolant system and should be checked frequently during services. Coolant system diagnosis and repair can sometimes be a problem. A coolant leak can sometimes take time to find. The vehicle could leak when it's cold, or maybe you...
Does the word “Infotainment” make you cringe? Well you’re not alone. A lot of technicians are nervous about working on these systems, but they're not as bad as you may think. The first part of the word "Infotainment" is "Information," and that’s what you will need to...
A Little History Volvo turbo The exhaust-driven turbocharger was invented back in 1905 by Swiss engineer Dr. Alfred Büchi in Germany. And the first mass produced turbocharged car engine was used in the Oldsmobile turbo Jetfire in 1962. This turbocharger was fitted to...
The turbocharger boost pressure in Volvos is controlled by the Boost Pressure Control (BPC) valve whose pressure regulator is affected by the pressure from the turbocharger. The Engine Control Module (ECM) determines current throttle angle and boost pressure to...
This oil trap system allows the engine to breathe properly during operation. Here's what it does and how to replace it. Volvo has been using an oil trap for Positive Crankcase Ventilation (PCV) on Volvos for many years. The oil trap sits under the intake manifold and...
Electrical power is everything. A networked Volvo needs all its parts running efficiently. When ALL of the codes can generate from electrical issues, where do you start? Today, more than ever, a healthy and fully functioning electrical system is one of the most...
Vehicle computer communications and wiring systems have grown more complex. Understanding these systems may help you in your next wiring diagnosis. Through the years, Volvo vehicles have changed not only in appearance and capabilities but also with the vehicles'...
In this issue: Understanding Volvo Networks and Wiring • 12 VDC Charging System Power Problems, Testing and Repairs • Replacing the Oil Trap and Oil Pan Sump • How Turbo Systems Work
