Hey how is it going do it yourselfers, today i’m going to show you the way you can use an A/C manifold gauge set to diagnose problems along with your cars AC procedure, however no longer simply that I can even go over how you can use it to add refrigerant to your ac system as well. Very well so on the left facet we got this in blue this is going to be for the low stress aspect, and this gauge on the right facet goes to be for our high strain side. And than we acquired these two connectors on the end with the intention to attach to the pressure ports on our high and low strain traces of our ac approach and thats how we’ll get the strain readings on these gauges. And these guys are simply attached to the manifolds at the ends right here, and these do not do some thing they are simply there so to attach these to them, they’ve no useful intent besides that. And the way in which these guys work is that there’s a fast connect coupler on the end of them which you pull out and than you would put this over the stress port so this one is going to be the low facet pressure port and than while you let it go it holds it in position and than you run down this valve, this valve right here would press down on a schrader valve that is to your connector for the low aspect and open up the system to your ac manifold gauges.Alright subsequent let me give an explanation for to you what these two knobs right here do or surely in this case this one knob, there may be one other knob thats speculated to be right here just in crimson nevertheless it’s broken on mine and its lacking but just imagine there is a further knob like this here that is purple. If you open these, these will open up your low and high strain sides to center line, this yellow line. And this middle line is used so as to add both refrigerant to your method, or absolutely evacuate the approach of refrigerant or pull a vacuum on a method after a restore to affirm that there are not any leaks within the process. Now so far as where you attach your connectors it’s lovely, if you’re fortunate adequate you’ll be able to have a plastic cap like this that claims H on it. And whenever you unscrew that you’ll see the strain port the place you could join your high strain side, however if you are no longer lucky adequate to have these plastic caps fear non the connector that goes to the excessive pressure aspect goes to be the diameter on the inside of it will be bigger than the one that goes on the low stress part.In so many words these are truly dummy proof and you really can’t put them on improper. Okay so I going to move ahead and attach this to our excessive strain facet, after I connect it you just wish to pull on it fairly make certain it’s secured in position. And likewise before you put this on you want to make certain your valve is turned counter clockwise the entire method in order that the pin shouldn’t be going to press on the schrader valve immediately, but than after you attach it than you want to turn this clockwise in order that the pin that’s inside here press on the schrader valve and there I have no idea when you guys heard it that just opened the process to our ac manifold gauge set. Okay so we come again as much as our stress gauges and as you’ll discover on the high side now we have now about 75 psi of pressure on this facet and that is going to be viewed your static pressure which means this is the pressure you have with the car sitting turned off and the compressor not engaged.Okay subsequent i’m going to connect the low side which is back right here. O.K. As you’ll discover we’ve obtained about 60 psi of pressure on the low side as well which is pretty practically what on the high pressure facet and that is what you need to peer. So on this board I’ve drawn up two types of fashioned ac techniques which are out there, one style is the one that has a diffusion valve and the other sort is the one that comes with an orifice tube instead and what we’ve got on this auto is this method here so we bought our ac compressor which is this guy here which compresses the refrigerant and starts the high stress aspect of your ac approach which works from your ac compressor to your condenser and from there to your receiver drier and than your enlargement valve and than after that’s the low aspect of your approach which is the evaporator, which is the one that is inside of your dash inside of your auto along with your blower motor inside of there blowing over it and than the return line that goes to your ac compressor so that is the low strain facet on this approach and the whole thing in pink is your high stress side.Alright so for those who attach your strain gauges to a auto that’s been sitting for a while the pressure on all sides must be rather close to equal on account that as soon as the compressor is turned off the strain equalizes on each side, the stress leaks from the excessive stress sides to the low stress facet and with out the ac compressor strolling one facet is not going to have extra stress than the opposite however should you connect your pressure gauges and this facet is alot larger than the low facet than that means you’ve gotten a clog right here that is now not letting the refrigerant to slowly get again into the low pressure side equalizing the procedure and that most commonly the culprit for that could be a clogged orifice tube when you’ve got this approach or a variety valve that’s caught closed.Now until you may have a totally clogged orifice tube or an expansion valve that is stuck entirely closed, it can be not very long-established to have these numbers with the ac grew to become off and the vehicle not strolling. Get for your vehicle and turn on the engine, turn to your fan all the approach to excessive make sure you are in highest cool and switch on your AC. Next you want to wait a couple of minutes and with your AC compressor clutch engaged you wish to have to take your measurements and as you can see on the low facet we received about 15 17 on the low side and about a hundred and twenty on the high side.So subsequent if you get these numbers you want to look into your repairs guide and evaluate these numbers to the numbers you might be presupposed to have given the temperature and the humidity at the time you took the measurements. But listed here are some very common numbers that would advisor you to take a look at to diagnose problems with your automobile. All right so right here in these days our temperature is ready sixty eight levels fahrenheit and our relative humidity is above 40% and the pressure we are looking to get at the low side will have to about twenty 5 to thirty seven and the high facet should be about eighty three to one fifty five.All right so in keeping with the numbers we got prior we are absolutely on the low facet for the low pressure facet and also on the high pressure facet we’re toward the low aspect as well which clearly manner we are with no trouble low on refrigerant. And that about sounds right given that on this auto while you activate the ac you aren’t getting bloodless air you just get relatively cool air popping out of your air vents. All right next lets talk about distinctive numbers that you simply could get for your gauges, so in case your numbers on the low side and on the high part are higher than what you might be purported to have than that would indicate that you either have too much refrigerant within the procedure or you could have air that has gotten to your process as well. Also if your ac condenser is unable to cool the refrigerant that’s passing through it, both seeing that your ac enthusiasts are not coming on or junk and filth and debry that might be logged in entrance of it and no longer permitting air to go over it, than once more you might probably be high on both sides as good.Alright subsequent let’s imagine when you get in regards to the same numbers on all sides, and if you are getting the same numbers on both sides with the air compressor jogging in different phrases your ac compressor clutch engaged and you are still getting the identical numbers than that’s going to intend essentially your compressor shouldn’t be doing it’s job which in actual fact to compress the refrigerant , to take refrigerant from one side suck in refrigerant from the low aspect and compress it into the excessive strain side growing low pressure on the low part and high stress on the excessive aspect and if it’s no longer doing that than that on the whole approach it is shot and wishes to be replaced. O.K. So in the subsequent situation we’re going to say that the numbers for your low aspect are cut down than what they are supposed to be and the excessive side are higher than what they are purported to be. O.K. So if that’s the case you almost definitely have a clog in your high stress aspect which is in actual fact blocking off the refrigerant from passing to the low stress facet elevating the strain on the excessive aspect and reducing the strain on the low facet, the major offender is going to be in case you have a approach with an expansion valve the valve that is caught near the closed position or a clogged receiver drier, now if you have a system that has an orifice tube rather of a ramification valve than the fundamental perpetrator goes to be the orifice tube, see on this method you should not have a receiver drier on the excessive strain part however instead you will have an ac accumulator on the low strain part.Very well so next lets talk concerning the trickiest set of numbers that you would be able to get at the same time diagnosing an ac approach which is simply too high of a psi on the low facet and too low on the excessive aspect, if that is so if you have a variety valve established than that could potentially be your expansion valve thats stuck open or close the open function allowing an excessive amount of refrigerant to move by means of, or a quandary with the verify valves inside your ac compressor, see these verify valves like on the low side they only enable refrigerant to get in and not get back out and on the compressor side or the excessive pressure side they only refrigerant to get out and no longer get again in.But when like this assess valve shouldn’t be opening sufficient or it is kind of closed than you will build up an excessive amount of psi on this aspect but extra doubtless wrongdoer goes to be your expansion valve caught near the open position. Now should you get these numbers on a collection with an orifice tube than, see it wont be your orifice tube considering that an orifice tube simply has a suite opening or a suite orifice you could say which best which is not adjustable so it are not able to be stuck open like a diffusion valve so the wrongdoer goes to be either your ac compressor or your ac accumulator if its clogged would carry the stress on the low facet and therefore cut down the pressure on the high aspect. Very well adequate of that so now let me exhibit you the way you need to use this so as to add refrigerant to your car’s ac approach.So without doubt you’ll be able to desire a can of refrigerant you’ll also want a can tap like this and the best way this works is that you’ll be able to screw this on the can and than while you screw on this valve there may be a needle at the finish of it that’ll come out and puncture the can opening up the refrigerant to the valve and this is going to be connected to this yellow line right here and than from right here we are going to open up the valve to the low part and than that’s going to suck in the refrigerant through this line and the can to the low pressure side. And once again if you find yourself screwing this on the can be certain this valve is became counter clockwise and it can be within the open role and subsequent we will screw on our yellow line and than we begin turning this in.O.K. So once again we’re going to get in the auto activate the engine and activate the ac and are available again right here and open up that valve to be able to open up the method and suck in the refrigerant from the can by means of this yellow line and the blue line into the engine. O.K. So flip this counter clockwise and that you can flip this the wrong way up to support with the waft, and here is a closer shot and you could really see the refrigerant and the entire oil that’s in that may move through here to your low stress side. Alright with our can ordinarily empty we are at virtually 25 on the low side and simply above a hundred and fifty on the high stress facet which is set proper, and now we received particularly high-quality cold air coming out of these air vents, fantastic.And that must about duvet it guys hope you enjoyed this video, for those who did do me a want and share it along with your buddies and family to your favourite social network whether it is facebook twitter or instagram and also become a member of me there i’ll put a link to my pages on these networks or platforms proper bellow this video, and specially on instagram I simply opened my web page there and that i rather like the platform there so if you wish to be in contact on there and in case you have an instagram page go forward and add me there i’ll additionally put some links to other related video’s on this part of the monitor that you could click on on there can even be links within the description down bellow.Very well thanks for gazing i will see you guys subsequent time. .