Late in the final practice for today's NASCAR Autism Speaks 400, pole sitter Ryan Newman reported a strange noise in his Roger Penske Dodge Avenger. The Penske Racing team examined a malfunctioning engine but remained baffled as to the nature of the problem. Changing an engine would have meant giving up the pole and starting at the rear of the field in the 400. Before the team made that drastic move, it was decided that the noise involved the air conditioning system, according to a Penske Racing representative. Evidently an AC hose to Newman's helmet disconnected making unfamiliar noises. That proved to be an easy fix.