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. Sponsored by BCA Bearings.
Oil Consumption On Manual Transmission Acura Vehicles
In this updated TSB from 2013, Acura discusses how some 2011-‘13 TSX models with manual transmissions can develop an oil consumption problem. The TSB states: “If you do not see any other factors contributing to oil consumption, consider engine braking as the possible cause.”
Audi Start-Stop System Information
This informational TSB applies to Audi vehicles with a start/stop system. The start/stop system allows automatic engine stops and starts. Although the driver expects it, the engine may not automatically be switched off due to many different factors.
Automatic Transmission Fluid And Vehicle-Specific Formulations
Why are there so many types of automatic transmission fluid? You might ask yourself this question when you are tasked with ordering a few quarts for an Asian or European vehicle that rolls into your shop. While catering to specific carmaker demands can be a challenge, staying current with manufacturer recommendations is a must for today’s shops.
Purging Air From Hydraulic Clutch Systems
Replacing a clutch bearing on a Ford Ranger, Explorer, Navajo or F-Series truck generally completes the repair with no further replacement parts needed. However, master cylinders may need to be replaced, which could result in air getting into the system. This tech tip describes a common method to remove the air from a standard hydraulic clutch system.
VIDEO: Three Tips For Driveshaft Service
More vehicles are using all-wheel or rear-wheel drive and driveshaft service is becoming more common. Andrew Markel shares three driveshaft service tips. Sponsored by Auto Value and Bumper To Bumper.
Drive Shaft And Drivetrain Vibrations: Understanding The Order And Math
To determine if a vibration is vehicle- or engine-speed related, the easiest thing to do is slip the transmission into neutral and let the vehicle coast when the vibration is most noticeable. If the vibration continues, then the vibration is vehicle-speed related. Likewise, if the vibration subsides, the vibration is engine-speed related.
Solving Automatic Transmission Electronic Control Problems
Troubleshooting an automatic transmission can be one of the most intimidating diagnostic procedures at a shop. The first reaction is typically, “We don’t do that type of work,” but there is profit in performing drivetrain diagnostics and “in-the-car” repairs.
Cadillac Tech Tip: Engine Stalls After Fuel Pump Replacement
Sometimes you have to hit the road to determine the cause of an issue. Follow along with this Real Fix to see how a stalling complaint was resolved on this 2008 Cadillac Escalade. Model: 2008 Cadillac Escalade 6.2L Cause Confirmed the customer’s complaint and found the engine stalled. Performed a visual inspection of the vacuum
Subaru Tech Tip: Error Codes Following Wheel Bearing Hub Replacement
On the hubs for 2005-2014 Subaru Legacy and Outback applications, a speed sensor mounts into the knuckle. It’s exposed end extends out behind the bearing to capture pulses from an encoder ring on the back of the bearing.
Dual Clutch Transmission Diagnostics
The dual-clutch transmission produces a drivetrain that has the efficiency of a manual transmission, but the ease of use of an automatic. Compared to automatic transmissions, one manufacturer claims a 5–10 percent reduction in fuel consumption from just this one feature.
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.
