Hey guys I have a problem with my car surging/bucking while holding at a constant speed. This happens on both hill climes or flat straight aways. It goes away when you accelerate or let off. It happens at any constant speed. I thought it might have somthing to do with the OD so I drove it around in 3rd and it becomes even more noticeable. Took it do the dealer because it was also runing rough and to have them check out the surging. They found Bad spark plugs & Wires as the cause for runing rough (Duh!!) but said they could not feel the surging. Any ideas on what this can be?