I have a 2002 dmax allison that I just recently put a high idle kit on. The high idle works great. I did notice that when in park my truck will not rev past 2000 rpms. I thought that it would rev all the way to the red line before I put the kit in, but I am not sure. The truck revs all the way in every other gear. Is there a problem or are all of the trucks this way?

paul.

thats normal with it. In order to defeat that you have to put a defeat switch in.... or just leave it as I dont know why you want to rev itup in Park anyways

Thanks for the info. I just wanted to make sure that nothing was wrong.