GM has issued a Special Coverage notification for certain 2021 Chevy Colorado pickup units describing a coverage extension related to a throttle body issue in trucks motivated by the Duramax ...

Here's a question from a reader about adding power to a GM TBI engine. The principle is pretty much the same with any speed-density fuel-injection system, so check out engine guru Jeff Smith's answer ...

This 6061-T6 billet aluminum Silver Bullet throttle-body spacer from aFe Power is said to add 8hp to 2014 5.3L GM V8s and up to 12 lbs./ft. of torque. The serrated/helix design lengthens the intake ...

Throttle body cleaning is a necessary part of vehicle maintenance since the throttle body plays a significant role in the smooth running of the engine. The purpose of the throttle body is to control ...