Drivetrain Archives - Page 2 of 2 - Tomorrows Technician
Driveline System Balance Adjustment Using an Electronic Vibration Analyzer

Fine-tuning the balance of a propeller shaft can aid in achieving a more balanced total driveline system.

VIDEO: Diagnosing Drivetrain Stabilization

The angles of the universal and cardan joints on a driveshaft have a limited range of motion. If the angle of the pinion, transmission or axle exceed the specifications, it can result in noise and damage to the drivetrain. Andrew Markel shows how a worn motor mount or damaged axle can result in a customer noise compliant.

How To Diagnose NVH Complaints In Drivetrain Components

Thanks to advanced technology, modern vehicles operate with fewer noise, vibration and harshness (NVH) complaints than ever ­before.

VIDEO: Improving Flywheel Job Precision With Your Phone

Andrew Markel discusses flywheel jobs, and how to improve the precision and line-up of the components after it is finished.

What’s Coming Next With Differentials And Transfer Cases?

With a lot of AWD cars and SUVs coming off powertrain warranties, you are going to see more differential and transfer case maintenance and repairs at the shop.

Driveshaft FAQs

Let’s take a look at some of the frequently asked questions about driveshafts.

How To Diagnose NVH Complaints In Drivetrain Components

Thanks to advanced technology, modern vehicles operate with fewer noise, vibration and harshness (NVH) complaints than ever ­before. Consequently, when a NVH issue arises, it’s most likely caused by worn drivetrain components like universal joints, constant velocity joints or wheel bearing hub assemblies. In any case, NVH complaints can often be the most challenging to diagnose when you can’t duplicate the driving conditions under which they occur.

VIDEO: Diagnosing Undercar Noises During A Test Drive

Andrew Markel shows three tips to use during a test drive to diagnose noises relating to the wheel bearings, drivetrain and other components.

VIDEO: Replacing Gear Oil In Drivetrain Components

Andrew Markel stresses the importance of replacing lubrication in drivetrain components to prevent damage to the many parts inside them.

Active Drivetrains And Differentials

Vehicles equipped with 4×4 or all-wheel-drive (AWD) systems are designed to provide advantages throughout the year, but winter tends to bring these vehicles into focus.