Like a Buick where you need to lift the engine to get to some of the plugs?
“Like a Buick where you need to lift the engine to get to some of the plugs?”
Decades ago I worked on a Winnebego that ran crappy. I was able to replace all of the plugs but one. They put the house right on top of it...I tried for hours, then told the owner, sorry, no dice.