The problem is that ever since I put in my ls1 into my car, my climate control as been pooched. The blower stays on window defrost and I can't get any cool air throught the vents. I know the whole blowersysem/climate control in my 91 runs on vacuum but I have the vacuum hoses hooked up but I don't think they're hooked up right. Has anyone had this problem and can you help me solve this conundrum?? Please and thanks!!