okay for all you do it yourselfers out there I'm going to do a quick detail on how to vacuum or draw down an air conditioning system in an automobile this is the main component you need pick these up at Harbor Freight for under $100 that's a two and a half CFM vacuum keep it foot per minute as I see it n stands for this is the vacuum air out of this if you follow this up this is our 134 AC system here's your AC gauge set here I don't know if you can see this but I've been running this for about a half an hour now if you look over here you can see that we have now the vacuum on the system to low zero psi and this is on the high side the red and the low side also is below zero that picture of bad lighting anyway what I'm trying to show here is that I've now you know after a half hour have a vacuum in the AC system this is the high side the red this coat hooks to the low side again this is the vacuum down to the pump over here so the direction of first off make sure that your lines are all open for both you're high and you're both side and with that vacuum it is drawing this way so from the high side is being sucked it up and down on the low side we get the try get sucked up over and down you're putting a vacuum on your system x1 shows it to four it's the highside and low-side okay here's the high side force this is a quick-connect r134 gizmo here so you turn it on right now it's on you know that will draw out I can't do it right now if I got one hand but you want to make citizens on so that you can draw air from the system so that's the high side here make sure all your connections are tight a lot of times I move from up to get at the atmosphere out when I'm charging so always make sure these are tight and listen Baldy this is the this is the low-side you follow that down and you can see the fittings again light is pretty bad you can see the fitting here at the low side so we were drawing a system down both on the high and the low side for about 30 minutes what I'm gonna do then is I'm going to stop turn it off let it sit for about 15 minutes to ensure that I maintain a vacuum which will tell me there's no leak in the system again that you know this forest should stay below