I just recently fixed a leaky plenum and found out I also had a vacuum leak that had something to do with the A/C. Whenever I turn it on, it hisses for a few minutes, sputters, then quits. If I hit the throttle, it starts over, and sometimes it stops cooling for a few seconds. Is it the switch? I've looked at the back of that thing and its a tangled mess of vacuum tubing, and you don't have a lot of room to even get to them. Any suggestions?

 

You obviously have a vac leak some where! Could be in numerous places. And since it seems like I've taken it upon myself to bust people's ***** about NOT putting the info in there sig about there truck, like if it's a 4wd or not for instance! You will not get as many replies as you might. You also have 130 posts and don't realize that yet? Come on, I know I'm being an azz, but get with the program will ya ?

 

Hey ya'll, watch this!

 

"it hisses for a few minutes, sputters, then quits."

What does,the compressor?