Lariats have the "auto climate" feature, another troublesome unit. If it is found to be bad, it's unrepairable and on the pricy side to replace.
Hopefully for you it will be something simple; otherwise be prepared for a large repair (and parts) bill from the "senior Ford tech".
"Never argue with an idiot; they'll only drag you down to their level, then beat you with experience"
2007 F150 STX Supercab (4.6 2V V8), Edge tuner, factory navigation, Mark VIII electric fan conversion with flex-o-lite controller.
Last edited by Bucko; 12-07-2009 at 08:35 PM.