>>>mpm51896<<< I know this post is fairly old but worth a shot in the dark......did you ever get to the bottom of your intermittent starting issue with your chevrolet silverado? Am dealing with very same problem and have replaced many components to no avail. It is and now has become (5 months now) a no start at all issue. Actually pulled 4.3 out to implant a 6.0 but thats going to require way too many modifications so idea scrapped and fixin to drop the 4.3 back into the 2000 silverado and ship it to a garage. Frustrating indeed.