2000 Ford F-250 Super Duty Q&A
2000 Ford F-250 Super Duty Question: A/C blows through Defrost vents.
ISSUE: Some 1999-2006 F-Super Duty and 2000-2005 Excursion vehicles built before 6/27/2005 and 1999-2006 F650/750 vehicles, all vehicles equipped with the 7.3L or 6.0L diesel engine, may exhibit a vacuum pump that is inoperative or running continuously. If the pump is inoperative, the climate control system will default to defrost mode and the 4x4 system may also be affected. ACTION: Install a new vacuum pump. Before replacing the pump, check for and repair any pinched or leaking vacuum line(s). PART NUMBER PART NAME 6C3Z-2A451-BA Vacuum Pump - Brian Glastetter
Doug, it is generally a vacuum leak at some place. More common at the pump and lines. I've seen a few on the pass. side where sometimes people have accidentally kicked the lines behind the glove box etc. Thanks, Dan - Bankston Ford Mazda Ft Worth
A/C stopped blowing through front dash vents during long drive. Cold air is now blowing out of...
My truck only blows hot air. Speeds works fine and when I put the AC on I can hear it working but, it still blows hot. The selector knob works fine as well (defrost, defrost floor, etc...) Thanks.