350 vortec spark plug gap on 2004 GMC Yukon

what is the correcct gap?

by in Paso Robles, CA on May 22, 2011
1 answer 1 comment
ANSWER by , May 22, 2011
These vehicles use platinum plugs which you NEVER try to re-gap because it will break off the platinum tips.
COMMENT by , May 22, 2011
Man! That's good to know, thanks. How often should they be replaced?