GM Truck Low Power/Misfire Case Study - Part 1

This beastly GMC Yukon Denali V8 doesn t have all its horses. It really gets upset when you "give it the beans". Check Engine light is flashing, but it s not setting any misfire codes!! Let s gather some data and come up with a 100% ACCURATE TEST to figure out why this truck is falling on its face. Enjoy! Ivan PHAD Amazon Store: https://www.amazon.com/shop/pinehollowautodiagnostics