2000 Saturn LS - need to add a/c coolant. WHERE???
I bought the R-134a coolant and the directions sounds simple enough. But I can't find where to put it. I see no red or blue cap on any valves. Where do I find the right spot? Do I have the right stuff?
Re: 2000 Saturn LS - need to add a/c coolant. WHERE???
The red and blue caps that the bottle is reffering to are the valves on the A/C manifold. It is a seperate tool, not something that is on your car. The manifold hooks to your A/C system and then the bottle that you bought hooks to the manifold.
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1995 is tricky year for A/C as it changed from R12 to 134A around that time on most vehicles.Do the fill ports look like tire air valves,then they are R12.If they are as fat as your finger with possibly one with a blue cap and the other red its134A. Or both caps could be black but again will be fatter than a tire valve and cap threads will be internal in a 134A system.
DO NOT REFILL with any refrigerant that shows an EXPLOSIVE warning sticker on it.They are usually butane and propane mixes and you may not want that spraying on you in an accident situation.
TIP.If you see any fine grey material in the A/C system on a Ford,the systems A/C compressor is done and has contaminated the complete system.The system has to be completely cleaned before a new compressor can be fitted.A complete disassembly is required to clean the system of the grey material.If you have an R12 system it can be converted to 134A and you will get colder A/C as a bonus.
Along the condensor lines, you will find 2 ports that should have screwed on black caps, you will then remove the cap. Dependant on the year, you may need to upgrade the system R-12, vs R-134a; and recharge kits are available at various locations depending where you live. Also, the AC system is charged based on pounds, so be extra careful when attempting a new charge. Some vehicles only require 2 lbs.
On the low pressure valve located between the compressor and accumulator. The low pressure port has a black or blue cap covering the recharge valve. Don't worry, you can't connect the hose to any other valve port but the low side, the hose end is different from the high side. The high side has a red cap, and is not a recharge port.
Newer vehicle come with R134 vs R12. Since the two are not compatible, R134 has larger fittings. AC system has two ports, High and Low. Low is return to AC Compressor and high is output. High port is first following line from compressor to condenser (condenser is at front of vehicle like a second radiator). Keep following line till you find high port (paint cap red). Second port is low (paint cap blue).
I just did this for my 1994 Camry. Does your camry use the R-134A modern refrigerant? Probably.
Go to an auto parts store and buy a can of R-134A with a pressure guage included. You'll need that guage so you don't overfill the system. I bought one that allows me to save the guage and buy cheaper refills int he future.
There are two AC valves. A small one, located in the left-rear of the engine compartment, behind the strut tower, just in front of where the passenger seat is located. It might have a cap on it marked "L". This is the "Low" port, and is the one you want. The larger "H" port is up near the battery, is bigger, and is the "high" port. You don't want to use that one, and besides, it won't fit the can anyway.
Locate that low valve in the left-rear of the compartment. Take the cap off (if one is still on there). Start the engine and get it up to running temp. Turn on your AC to maximum cool, fan at maximum. Follow the directions on the can. It's pretty simple.
You'll pull back on the bushing on the refill line, and then snap it onto the valve just like you'd find on an air hose. Snap it into place, and then start refilling. Make sure the can is upside down and that you rotate and shake the can to get the coolant out effectively.
with a 134a type system the do it yourself kit comes with a recharge hose ( it normally will only fit the low pressure side ) the low side is the line running from the compressor to the firewall,it may have a blue cap on it,the high side runs from the comoressor to the front of the car and through the condenser back to the firewall,it may have a red cap on it.
your system is a 134a it is not freon based. the lowside is the bigger port and usually has a large black or blue cap on it it should be located near the a/c compressor on the driver side where the line goes to the condensor. your high side should be on the passenger side near the dryer it will be the smaller port and have either a black or red cap. the ,low side pressure should be 35 psi and the high side should be 150 psi. please rate this.....thanks
Hello JAEGERMAN, It sounds to me like you need to have the system checked to leaks If that is not enough 134a in the system the compressor is not start up. Now if you have already do that and it is still not working then there is a Air Conditioner Amplifier That also starts the Compressor and will not start if it is bad. That controls the trucks idle and air conditioning compressor. if that is bad you may have to take it to a shop. But if you have not check the level in the system then you can do that yourself. Go to your nearest WalMart And buy a can of 134a with Sealant in the can and make sure you buy to one that has the system check gauge on the R134a fix it kit. Now what you want to do is to Open your hood on the truck and find the evaporator Its the Small Round a little bigger than a pop can should be stainless or aluminum having two lines running into it, You will see a Black Cap there and there may be two of them You want to use the on closest to the evaporator with the smaller fitting, Make sure the filler tube that comes with the R134 kit fits on the Valve by just taking off the valve cap and see if the tube fits on that fitting. Now what you want to do is go ahead and put the can and the tube together and go and start your truck up, turn your air conditioner on go out and Hook up the filler tube and can of 134 place on system and pull trigger on can of system seal and 134a let off and look at the gauge on can see if it reads Low or High Blue is usually good at the top of the blue. Just read the can and directions it fairly simple and I think You will find its low and need to be filled with the 134a and sealer so just go ahead pull trigger holding can upside down and let off few seconds until filled your compressor will start to turn on and off until system is up to full an hopefully it will seal it up and she will be working again, JAEGERMAN Hope that help you out Thanks for using Fix Ya and I am Bear001