Same here, I went for a drive today and payed attention to it and it never came on other then at start up. Didn't matter if I shifted at 5k or if I slowly reved it up to 4k. Also, does your truck acctually pull hard all the way to the rev limiter? My power seems to drop off quite a bit right before 5k but pulls really strong from about 3-4700, stock everything on it right now.:huh:My 02 shift light comes on at start up but then is never seen again. I can hit the rev limiter but it doesn't come back on.