I bought this truck about 6 months ago and the previous owner told me the ac would probably need recharged this summer. Summer rolled around and I recharged it, worked perfect. A few weeks after I tried to use the ac again and noticed it was stuck on the defrost vents only no matter what setting I put it on. Looked under the hood and noticed this vacuum line was snapped off, can't figure out where it was previously connected too. Not sure if that's the problem but any input would be greatly appreciated.