Went for a morning drive for about 40 minutes. Parked car for about 10 minutes and then had a "no start" situation where I had dash lights but no starter crank. My '05 Xfire has been experiencing intermittent starting problems and was wondering if anyone thinks a too warm ECU/RCM could be part of my problem. Stuck my finger in that mysterious hole in the front bottom of the box and the fan bit me! It does push out air but how much is adequate for cooling the ECU. The air coming out seems a little warm and I do realize the air comes from the cabin. I do have a new cabin filter installed. Should the fan "pull" air from the cabin into the black box via the fan hole in the front of the box? What is the circulation path "in and out" of the black box? With the black box's cover installed seems it might not circulate. Has new cam and crank sensors.