VIDEO: Seals Are Critical To Wheel Bearing Life
Andrew Markel discusses the importance of the wheel bearing seal and how it withstands intense heat to increase the bearing’s life.
VIDEO: Five Tips To Diagnose Belt Noise
Andrew Markel shares five useful tips to diagnose and resolve belt noise, including twisting the tensioner, measuring the grooves, and ensuring the belt and pulleys are properly aligned.
VIDEO: Three Tips To Replace Exhaust Manifold Gaskets
Andrew Markel explains how exhaust manifold gaskets on some engines can be difficult to work with. The video also offers some pro tips to make the job easier, including using anti-seize and induction heating.
R1234yf: Smaller Footprint, New Diagnostics
The benefit of R1234yf is simple. The new refrigerant lasts only 11 days in the atmosphere compared to 13 years for R134a. This is why the EPA is requiring R1234yf to be installed in all new systems by 2021.
VIDEO: Should I Tighten An Axle Nut With An Impact?
Andrew Markel explains why you should hand-tighten an axle nut, and how an impact could damage the CV axle or bearing.
Ultimate Underhood: Dry Sump Engine Oil Systems
On GM’s newer LT V8s, there is an option for a dry sump lubrication system. Dry sump oiling systems improve lubrication system performance during aggressive driving maneuvers and high cornering loads.
VIDEO: Understanding Modern Engine Intake, Water Pump And Thermostat Gaskets
Andrew Markel discusses new gasket designs and how they are used on modern engines.
VIDEO: Air, Oil And Fuel Filter Capacity And Efficiency
Air, oil and fuel filters are typically compared on efficiency and capacity. But, what do these numbers mean to the vehicle? Andrew Markel discusses what these numbers mean and what happens if a filter is left on a vehicle when the capacity has been exceeded.
VIDEO: Three Steps To Diagnose A Poor Heater Performance Complaint
A poor heater performance complaint from a car or truck owner can be caused by low coolant, a blocked heater core or an open thermostat. Andrew Markel discusses the diagnostic strategies for solving a cold driver complaint.
VIDEO: Should Axle Nuts Be Reused On A New Hub Or Axle?
Should the axle nut be replaced when a new wheel bearing or CV joint is replaced? Andrew Markel discusses when to replace the axle nut as well as the proper torque procedure when using an axle nut socket.
VIDEO: Knuckle Bore Distortion And Bearing Installation
Andrew Markel shows how you can measure bore distortion on a knuckle and catch any bearing installation issues before they happen.
Brake Pad Contamination From Friction And Dust
Two forms of brake pad contamination can occur once a brake pad is pressed into a rotor and friction is generated.
