4.6L Tech
I've posted about this before but I have a video now. I have a 2000 Mustang GT w/ 144,000 miles. When a/c is turned to "norm a/c", "max a/c", "Defrost", or "Mix", I get this really bad idle when parked. When I'm moving I can feel a huge power loss and a surging. The surging/rough idle gets worse...