Tensioners and Pulleys
For a round piece of metal that doesn’t seem like it would do much other than support a belt, tensioners and pulleys play a surprising number of roles.
Spark Plug Evolution & Inspection
Today’s version of reading a spark plug can give you an indication of how other components are functioning within the engine.
Direct Injection and Driveability Diagnostics
Direct injection can be a diagnostic challenge, but with the right foundation, problems can be solved profitably.
Cylinder Sealing: The Art of Measuring What’s Happening Now
Conventional cranking compression and cylinder leakage tests have become time-consuming and often inaccurate. Modern engines require a more accurate method of testing cylinder sealing.
Engine Service: Crankshaft Position Sensors
Learn why the position of the crankshaft is important for the detecting of misfires.
Engine Service: Oil and Carbon Deposits
How oil volatility and additives impact carbon deposits and pre-ignition.
Cranky Crankshaft Position Sensors
A crank position sensor is an electronic device used to monitor the position and speed of the crankshaft. Without these sensors working correctly, there’s little chance the engine will run, let alone fire up at all. When there’s a problem, it’s not always apparent where it lies, so some basic understanding of how the crank sensor works can go a long way toward solving the issue.
Driveshaft Vibration Order
With any vibration measuring tool, always make your measurements under the conditions when the vibration is most noticeable. Then, always note the vehicle speed and engine rpm that correspond with the exact moment the vibration frequency is recorded.
