I’ve found that South Main Auto is fantastic for an in depth diagnosis. Although Eric does use some quite expensive equipment such as the Autel and Snap-on Scan/Scope, he does a lot with just a simple test light.

I follow a few including ECTG, Charles The Humble Mechanic, etc, but my favorite is Eric O. At South Main Auto https://www.youtube.com/channel/UCtAGz…