This is the first part of a 4-part series on automotive exhaust systems. Part 1 covers the basic engineering principles behind exhaust flow, the main components and their relationships, and…

This is Part 4 of a 4-part series on automotive fuel supply systems. This article covers how electric in-tank pumps create pressure, prevent vapor lock, and keep themselves cool. Seeing…

This is Part 3 of a 4-part series on automotive fuel supply systems. This article covers how pressure spikes are smoothed out, how different pump designs move fuel, and how…

This is Part 2 of a 4-part series on automotive fuel supply systems. This article covers how fuel level is monitored and how mechanical pumps move fuel from the tank…

This is Part 1 of a 4-part series on automotive fuel supply systems. This article covers the fundamentals of how fuel is stored, moved, and kept clean before it reaches…

This article is part of a 6-part series on automotive emission control systems. Part 6 covers how fuel vapors are captured in a charcoal canister instead of escaping to the…

This article is part of a 6-part series on automotive emission control systems. Part 5 covers how catalytic converters use precious metals to change exhaust gases into harmless substances and…

This article is part of a 6-part series on automotive emission control systems. Part 4 covers how positive displacement air pumps and pulse air systems deliver oxygen to the exhaust…

This article is part of a 6-part series on automotive emission control systems. Part 3 covers how EGR systems are modulated by vacuum, back pressure, and electronic signals, along with…

This article is part of a 6-part series on automotive emission control systems. Part 2 covers how air temperature control, ignition timing, and exhaust gas recirculation work together to reduce…