Car and Automotive Chassis Systems
Lexus Air Ride Review

Lexus models, including the LS sedan, RX crossover and GX SUV, are some of the least problematic air ride vehicles on the road. In fact, most Lexus customers do not realize that their vehicle is equipped with an air suspension until something breaks. Like all air ride systems, if you are not familiar with the system operation, you can throw a lot of parts at it without achieving any results. Taking some time to look at the theory and operation sections of the service information can save you a lot of lost time speculating on the source of the problem.

CV Axle Diagnostic And Service Tips

When a CV axle fails, it is for a reason. Rarely will an axle fail because it is just worn out. The failure of an axle can usually be traced to torn boot, alignment issue or a problem with components attached to the axle.

VIDEO: Power Steering ECM Technology

Andrew Markel discusses power steering systems, and how it uses sensors and the ECM to add steering assist during certain road conditions. Sponsored by Auto Value and Bumper to Bumper.

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WATCH: TTY Bolts For Suspension And Brake Components (Torque + Angle)

In this Tech Minute, Andrew Markel covers everything about TTY bolts and how their build could affect your next suspension repair. Brought to you by MEYLE.

Mazda Tech Tip: Vibration Felt Through The Floor/Seat/Steering Wheel

Some customers may complain about a vibration that is felt through the floor, seat and/or steering wheel while driving under moderate acceleration, at speeds of approximately 25-30 mph (40-50 km/h). The vibration is more noticeable when driving on smooth, flat roads.

Threadlockers: What You Need To Know

You might be seeing more blue, red and various other colors on the threads of bolts when working on suspension and brake components. OEMs put these threadlocking compounds there for a reason, and not servicing them could get you into trouble. To get the most out of this “liquid” tool, you first need to know how they work.

VIDEO: Suspension Hardware: End Alignment Bay Frustration!

Andrew Markel discusses suspension links on late model vehicles, and using the right hardware to install components without later issues in the alignment bay. Sponsored by MEYLE.

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Alignment Specs: 2011-2018 Volkswagen Touareg

The Touareg is not your typical vehicle to align. It has a stability control system that needs a recalibration of the steering angle sensor if the toe front or rear is adjusted. On vehicles with air ride systems, lifting the vehicle for a repair requires that the vehicle lift mode must be activated. The vehicle lift mode switches the air suspension control off. This prevents readjusting of the air springs when the vehicle is lifted. Vehicle lift mode is automatically switched off at a speed above 3 mph.

Understanding Customers And What They Think About Ride Control

The old proverb of “walk a mile in their shoes” applies to selling springs, shocks and struts. Your typical customer is not like you – their point of view is completely different. You have to understand what they know and what they value. You also need the patience to educate them on the importance of these critical automotive components.

Wheel Bearing Add-Ons

Wheel bearing service, no matter the design, can be a difficult job. There are new products and add-ons to the ticket that can give the customer a completely repaired vehicle.

Stacked Alignment: Solving Lead/Pull Conditions

Lead/pull conditions occur at all speeds. In general, the amount of force on the steering wheel or steering angle will increase with speed. If the customer states the lead/pull problem is sporadic, the cause could be the stability control system or electric power steering system.

Air Ride FAQs

An air ride system uses three basic inputs to determine if the system is operating properly. First, the pressure sensor measures pressure at the reservoir or after the compressor. Second, the ride height sensors measure the position of the wheel in the wheel well. Third, sensors that are not directly connected to the air ride system measure the ambient air temperature, vehicle speed and system voltage.