Isn't always an AFM lifter that fails

[lt1gmc]

Trouble shooting a #3 misfire on my 19 Denali 6.2 with 98K miles I found the #3 cyl intake lifter had serious wear on the roller and an obviously bad cam lobe. A non AFM cylinder.
Question: Is it easier to remove engine to do the AFM removal/cam swap? Body is getting pretty bruised up crawling around the engine bay trying to access everything, and the doing the front doesn't look much better.

 

[tooleyondeck]

It's unquestionably easier once the engine is pulled, it's the pulling it that makes it harder. Perhaps a good compromise would be pulling your fenders off to open up the sides?

 

[Joseph Garcia]

If you want to do something extreme, take the body off the truck and have the engine fully exposed for you. Not recommending it, but it is an option.