The improved flow of exhaust gas to the turbocharger results in quick response and powerful torque buildup.
Oil contamination of the belt drive has been a death sentence, due to the rubber and fiber construction of the belt.
Timing systems are durable but they still wear. This video is sponsored by INA, a Schaeffler brand.
Fuel, Spark, Air and Compression are all clearly important, but if they all need to happen at the same time.
In this excerpt from Dave Scaler’s complete training program ‘Base Engine Analysis,’ Dave shares a quick case study on a Pontiac Grand Am with a Quad 4 that came in with misfire DTCs. He discusses the diagnostic procedures and details of the compression test on this vehicles Quad 4. He gives some best practices and helpful hints for dealing with valve timing issues like those exhibited in this case study.
Section two of the ASE A8 task list is where you find ignition systems. In this video tip clip with instructor Dave Hobbs we’re going to do some cylinder balance testing, which will give us an idea if there is a misfire, and if so, which cylinder it is. And that oftentimes goes hand in hand with ignition diagnosis.