VIDEO: Coolant Temperature Sensor Diagnostics
If you have a vehicle in your shop with the fans running all the time, there may be a problem with the coolant temperature sensor. Andrew Markel explains.
VIDEO: TPMS Sensor Fault On Toyota Vehicles
Andrew Markel shows how to use “test before you touch” and other methods to determine if a TPMS sensor fault is with the sensor itself or the TPMS module on the vehicle
VIDEO: Brake Bleeding And The ABS HCU
Andrew Markel offers a quick tip when replacing brake pads, involving bleeding the brake fluid and pushing the piston in order to avoid damage to the ABS HCU.
VIDEO: Diagnosing The Starter With A Voltage Drop Test
Andrew Markel shows how to voltage drop test a starter when there is a slow crank, despite the battery and starter having enough voltage.
VIDEO: Clicking Noise After Wheel Hub Replacement
If a customer complains of a clicking noise after a hub unit has been replaced, two OEMs have each prepared their own solution to the problem, and they happen to be nearly identical.
VIDEO: Oxygen Sensor Operation Modes
Andrew Markel explains the difference between closed and open loop operations, and which is more efficient.
VIDEO: Motor Mounts And EVAP Codes
Andrew Markel shows how an EVAP code and a catalyst efficiency code are both related to weak motor mounts.
VIDEO: Key Fob TPMS Relearn Does Not Initiate
If you use a customer’s key fob to initiate a TPMS relearn and the relearn doesn’t start, you can use a dedicated TPMS tool to determine whether the issue is with the fob or the vehicle.
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: TPMS Deactivation On Custom Rims
Andrew Markel shows how some shops have tampered with TPMS sensors when installing custom rims, and the dangers that it can cause.
VIDEO: Brake Pad Research And Development
Andrew Markel explains how brake pads undergo quality control and research before they are distributed, and how that adds value to a brake pad job.
VIDEO: Saddle-Style Fuel Tanks And Transfer Pumps
Andrew Markel explains the inner workings of saddle-style fuel tanks and how the transfer pump keeps the primary pump ready to deliver fuel to the system.