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'...
The Volvo 5 cylinder engine has been the workhorse engine for many years, starting in 1993 with the 850 model in the U.S. The 850 went away in 1997 with the introduction of the S70 and V70 in 1998 and the XC70 in 1999.
Volvo interior electrical systems are based on a network with a number of modules. We will talk about different Volvo interior electrical systems, what they do, and how to diagnose them using VIDA. We’ll also discuss how to diagnose early models without VIDA.
If your customer gets a message that says something like “ANTI-SKID TEMPORARILY OFF” or “DTSC SPIN CONTROL OFF,” one of the major safety systems on that Volvo is not working.
Alternators have been charging vehicle batteries for many years, and charging systems have changed through the years as well. We will talk about one specific model, the Volvo XC90 V-8 engine type.
