On my way home from the holiday visit, I noticed a ticking noise from the passenger side of the pickup. Luckily I only had ten miles left before home. I popped the hood while running to take a listen. It seems to be coming from the vacuum pump. I am assuming that since it is making a sort of hammering noise, it is toast. The three silenoids that are on the drivers side of the intake wouldn't be the culprit would they? I broke the nice, (POS), plastic vacuum line that goes from the pump to the silenoids in an attempt to feel for vacuum from the pump. None what so ever. Thanks for the input, and happy Thanksgiving everyone.