Created on: 2024-05-23
This video shows you how to install a new thermal bypass valve from TRQ on your 2015-2020 GMC Yukon XL.
Razor Blade / Gasket Scraper
15mm Socket
Jack Stands
Brake Parts Cleaner
Safety Glasses
Pick
Gloves
Wheel Chocks
10mm Socket
Drain Pan
Transmission Fluid
Ratchet
Floor Jack
Cloth Rags
13mm Wrench
Andy diagnoses a top end clicking ticking noise in our Chevy Avalanche! Andy locates the clicking noise to the top driver side of the 5.3L V8 engine, and discovers an intermittent misfire in cylinder 1. After removing the valve cover, he finds a very loose rocker, the source of our noise. He determines the rocker is loose because its lifter has collapsed, meaning it's not pushing up on the rocker when activated by the camshaft. The fault is in the AFM (active fuel management) lifter.