This is really wierd and I almost thought it was the tranny but then the problem appears to be related to the Climate controls (??!!!) - here is my diagnosis ...
1. Climate Control set to circulate inside air (second button) : I come to a full stop, take off and here this wierd rattling noise from under the truck - noise stays intermittent for a few seconds and goes away completely - only comes back when I come to a full stop and take off again.
2. Climate Control set to outside air (first button) : Noise is completely gone - truck drive normal under all stop and go conditions. Now while driving less than about 30 mph, if I suddenly press the Circulate inside air button, I hear the noise for a second and it then goes away.
Before, I bring out the work clothes and attempt to fix this, does anyone know about this problem or any idea what it is??
Thanks!
1. Climate Control set to circulate inside air (second button) : I come to a full stop, take off and here this wierd rattling noise from under the truck - noise stays intermittent for a few seconds and goes away completely - only comes back when I come to a full stop and take off again.
2. Climate Control set to outside air (first button) : Noise is completely gone - truck drive normal under all stop and go conditions. Now while driving less than about 30 mph, if I suddenly press the Circulate inside air button, I hear the noise for a second and it then goes away.
Before, I bring out the work clothes and attempt to fix this, does anyone know about this problem or any idea what it is??
Thanks!
