change that pos right away, they leak bad when they blow out all the way. its a 12 dollar part, but keep an eye on it, i went through 3 of them, from every parts store here. i now have a brass 60 cent plug in the hole, sick of changing it.

channel locks work great to take it out, dont drive the new one in to far, stop when its snug, and into the thread locker on the new sensor threads.