AC is not cold?

Hello,

It sounds like you are low on freon here is a video to show you how to change the system with a troubleshooting guide.

https://youtu.be/uZrQCGwXfek

and

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

Please run down these guides and report back.

It was low I got a recharge kit works great! Love this site.

I have a Chevy Astro van 1999. Typically in the hot summer in FL my high speed fan and ac stops working. This has happened previously. Each time the repair service replaces the ac blower resistor. Since this appears to be happening routinely and the fix is always the same has a design issue been identified by Chevy. Has Chevy corrected this and how and what does it involve to fix the problem. Is this a fix I can do myself if I buy the part. Thanks for your assistance.

You said high blower speed? Do the lower speeds work?

If the problem is the resistor for the front blower, I don't know why you can't replace it yourself?

Air Conditioning problem
1999 Chevy Astro
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I recently had my radiator replaced. Afterwards, the A/C continued working fine for a while (a week or two). Then it suddenly stopped working. It had been sitting for a couple of days. The compressor clutch does not appear to be engaging. What are the most likely possible problems? Could a refrigerant leak have recently occurred, even though it was okay with no problems? Maybe a plugged orifice? Or a bad clutch?

Need to start by checking the pressures of the system to be sure it is full of refrigerant. If it is full, test for power at the clutch, if no power but full charge, test for power in and out of the low side cycling switch (located on receiver/dryer)

My 1999 chevy astro van's air conditioning is not working.i tried recharging the system and it blows cool air for a couple hours and the compressor cuts in and out rapidly,then there is no cold air .what do you think it is thanks.

Did you do an entire evacuate and recharge with the exact, weighed capacity of refrigerant?

I put in the right amount of refrigerant but i dont have a refrigerant recovery machine.do you think it might have moisture or debris in the lines.it could have a leak somewhere.

Did you start from a vacuum when you recharged it?

What are the high and low pressure readings at idle and 2,000 RPM on high blower?

On the ref. Gauge it would fluxuate between 25 and 45 psi. But when i initially started it read 5 psi.

You need a vacuum pump and professional gauges. Please go over this video to see what I am talking about.

https://youtu.be/4EqdrBVb0sY?si=LYvQ5uzWfNAz7Cyb


Please go over this guide and get back to us.

My air conditioner gets cold but the fan is not blowing cold air inside

Do you have an estimate on what that would cost? I dont want to put it in a shop and pay 400-600 dollars on a 100 dollar problem i cant really afford that .i'm a full time student.thank you for your help.

When you switch it from hot to cold make sure the flap is moving between the heater core and the air core. It is the right side under the dash..you would have to take dash apart :(

On my wifes van the rear a/c works but the front a/c is hot. I know its not a blend door problem because the receiver dryer is hot and does not get cold. I have replace the receiver dryer, oriface tube, and put a used a/c comp. on it.
We have got 3 kids and little money so if you could help with any advise it would be greatly appreciated.
Thanks Gary

There has to be something blocking it. Is the compressor cycling properly?

I'm sorry, I wanted to add check the dryer to see if it is plugging.

Sorry I had not checked this in a while. I also thought there had to be something blocking it. The only thing i could think is if a line is internaly busted blocking itself off or if the evaporator itself is blocked. I have replaced the dryer twice (new ones) each time.
Any thoughts?
Thanks Gary

If the compressor is cycling, then I would say the evaporator could be plugged. If it isn't turning on, then there may not be freon in it. Thus, something has broken or leaked. I really think you are on the right track with this one.

No cold air, Recharged with 134 got cool air down to 55* in max air. Low press. would not rise above 28 psi. with compressure cycled on. vechicle sat for a day and when started no cold air again. compressor was short cycling like it was low on charge. Connected gages low side 25 psi. and high side 98 psi. Thought it might have a leak, vacuumed it down and let it sit overnight. Vac.held all night. Now I am trying to figure out if it is a blockage or a failed compressor? Anything else I should check?

Syastem holds 32 oz. High 280 Low 37 is there rear air?

No rear air!

I hope to hear your thoughts on this problem, this vehicle is my work van and I use it as my work shop on the job. I use the AC almost year around in this climate. Your help in this diagnosis is greatly appreciated.

Was system opened up for repair? if yes was accumulator replaced? if yes exac hold vacuum for 2 hrs. then charge with 32 ozs. report high and low side readings

Air Conditioning problem
1997 Chevy Astro 6 cyl Two Wheel Drive Automatic

how to refill air conditioner cooler on a astro van

Charge it @ the low pressure valve-see location below: Service Port HVAC Figure 1 B-5 Low and High Pressure Gage Fittings

https://www.2carpros.com/kpages/auto_repair_manuals_alldata.htm

My 1997 Astro has 76000 miles. Until recently, usually under load, the A/C would sometimes not blow out the dash vents, only the defrost and under-dash. Taken off load, the problem would go away. Recently, the problem does not correct and the a/c now does not blow out the dash vents at all. A check under the hood revealed a small (1/16 I.D.) vacuum line is broken. This line connects to a "T" right next to the a/c dryer. The line runs back across the top of the block, toward the driver's side, but I cannot see where that end terminates. Where does the line go and how can I access it to replace it, presuming this is the cause of my a/c problem. thanks

try a short piece of rubber vac hose to repair the break

[quote:76c553a710="mike d in md"]try a short piece of rubber vac hose to repair the break[/quote:76c553a710]

I tried, but the original line just continued breaking and falling apart. I'm sure the whole line needs replacing, I just cannot see where it goes to up on the engine or how to access that area.

take off your doghouse to access the engine from inside the van. you should be able to see the line from there