Understanding Mercedes-Benz Lane Keeping Assist

Understanding how steering, Electronic Stability Program, acceleration, braking, camera and radar sensors interact in the Mercedes-Benz Active Lane...

Mercedes-Benz Vision URBANETIC – More than a self-driving vehicle

A revolutionary new mobility concept, the Vision URBANETIC platform from Mercedes-Benz Vans is much more than all-electric, self-driving vehicle....

Replacing the Volvo Oil Trap and Oil Pan Sump – Understanding What it Does and How to Replace it

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...

What About Mercedes-Benz Vans

Since 2006 more than 185,000 Sprinter and Metris vans have been delivered to destinations across the United States. Get to know the various models...

Volvo 12 VDC Charging System Power Problems, Testing and Repairs

Electrical power is everything. A networked Volvo needs all its parts running efficiently. When ALL of the codes can generate from electrical...

Diagnosing Toyota Tacoma Speed Sensors

2008 Toyota Tacoma came into the shop with a loud growling noise from the rear axle area.

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Are You Sure That Part is Bad? Saving Time, Effort and Money With a Few Simple Measurements

We take a close look at many of the most common electrical components we find in vehicles today and show how to test them to verify they really are...

Keeping the Toyota Pure

Aftermarket replacement parts often don’t measure up to the precision and reliability of genuine Toyota replacement parts. We offer some examples of...

Understanding Volvo Networks and Wiring

Vehicle computer communications and wiring systems have grown more complex. Understanding these systems may help you in your next wiring diagnosis....

Nissan MAF Sensors: Overview, Operation, Service, Diagnostics & Performance

The Mass Air Flow (MAF) sensor provides critical data to the ECM for calculating cylinder air charge and engine load. In combination with other...
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Is It a Gross Leak in the EVAP System?

Is It a Gross Leak in the EVAP System?

Is It A Gross Leak In The EVAP System? This 2008 Porsche Cayenne GTS Is producing a P0455 Code but is it in the EVAP system? In this video, we’re going to cover the P0455 Code and explore what we found.

When is a vacuum leak not a vacuum leak?

When it’s hiding in the EVAP system of a Porsche Cayenne.

A P0455 code points to an EVAP problem, but the EVAP system checks out OK with our smoke tester. And the purge valve checks out as well. So where could the problem lie?

Our derFix Super Sleuths unravel the mystery.

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