I have a 2006 RAM 2500 4WD. About 9 months ago the "wait to start" came on while I was driving. It beeped about 10 times and the light stayed on for 50 or so miles and went out. A few weeks later did the same thing again. This same thing repeated for several months, and the light always went out. For the past 2 months the light has stayed on all the time. Mechanic diagnosed it this past week as bad injectors and said I would burn holes in pistons and ruin transmission unless I had them changed. Has anyone experienced this situation? Truck runs fine, no skipping, etc. Possibly a little less power than usual.