I am too old to do repairs any more, but my son isn't. I was getting a PCV valve code on my LS. Of course, in order to replace the PCV valve on the V-6 you need to remove the intake manifold and everything that goes with it. My son removed the intake manifold, and while it was off I had him replace the valve cover gaskets and all the spark plugs and coils. It turns out it probably wasn't the PCV because the formed hose for it was crushed, but of course you would never discover that until the manifold was off. Everything was re-assembled and now my cruise control doesn't function. I took it on the freeway on Saturday, pushed the steering column switch ON, and when I got to cruising speed, I pushed the SET button. The green dashboard light came on, but the speed wouldn't lock. As soon as I let off on the gas pedal the car started slowing down. I found this annoying, but I bet the vehicle behind me found it more so. Well, my son has no idea what he disconnected or failed to reconnect so I was hoping someone here might have some things he should be checking, round up the usual suspects so to speak. The first thing I thought of was maybe a fuse, but would the dash light still come on if I had a blown fuse? I have pretty much ruled out the steering column innards because it was never accessed. All ideas cheerfully accepted.