Video Archives - Page 49 of 65 - UnderhoodService
VIDEO: What Can Cause A Turbocharger To Lose Boost?

This video covers the external conditions that can cause this type of damage. Sponsored by TrakMotive.

VIDEO: Scope Current Ramp To Check Coil’s Secondary Circuit Function

Access to secondary waveform testing is nearly impossible on some modern coil over plug ignition coils. But what if you need to check the secondary circuit function of the coil? The solution might be scoping the current ramp. Sponsored by Blue Streak.

VIDEO: The Battery Replacement Step You Always Forget

Battery replacement is one of the most common repairs performed by a shop, but some late-model vehicles require more than just attaching the cables and hold-downs. Sponsored by Auto Value and Bumper to Bumper.

VIDEO: Measuring Dwell In The Ignition System

A coil takes a finite amount of time to build up this charge. This is the dwell time, normally defined as the camshaft’s degree of rotation, during which the voltage flows through and charges the primary side of the coil. Sponsored by Blue Streak.

VIDEO: Lighting And Bulb Error Messages

When a bulb burns out it can produce a message in the instrument cluster and even a code. Andrew Markel discusses the procedures required to troubleshoot the circuit and to get the message to go away. Sponsored by Auto Value and Bumper to Bumper.

VIDEO: The Most Overlooked Brake Master Cylinder Replacement Part

If the seal or O-ring is leaking, it can cause a driveability issues with poor idle quality and lean DTC codes. Sponsored by Auto Value and Bumper to Bumper.

VIDEO: Diagnosing Ignition Related Misfires

By performing these easy checks, you can determine if the spark plug wires are the problem or it is another component in the ignition system or on the engine. Sponsored by Blue Streak.

VIDEO: Can Synthetic Oil Cause An Old Engine To Leak?

Synthetic and conventional base stocks are the same in how they interact with gasket and seal materials. This video covers the source of the myth, and why any engine can benefit from a synthetic or oil. Sponsored by Auto Value and Bumper to Bumper.

VIDEO: What Makes For A High-Quality Ignition Coil?

Less expensive ignition coils use resins that are less resistant to vibration, heat and endless heat cycles under the hood. Taking a risk on a cheap ignition coil from an unknown source can put an engine at risk. Sponsored by Blue Streak.

VIDEO: Are All OAD Pulleys The Same?

Andrew Markel explains why two overrunning decoupler pulleys (OAD) may look the same on the outside, but on the inside they may be different. The reason for this is that the OAD pulley is tuned for the engine, drive belt system and alternator. Sponsored by Litens.

VIDEO: Using The Search Function To Find Service Information

Online service information is like having access to an entire library in the repair bay. Navigating the service information like a book can cause you to miss critical information like TSBs and user generated content. Andrew Markel covers how to use the search function to find more information faster. Sponsored by ProDemand from Mitchell1.

VIDEO: What Is A Torsional Vibration In The Belt Drive And Pulley System?

Andrew Markel covers how the movement of the pistons create torsional vibrations in the belt drive system. These small changes in the speed of the crankshaft can cause vibration in the alternator and belt drive system. If the vibration goes unchecked, it could lead to belt wear and component failure. Sponsored by Litens.