No cold air

Bill Collector

Well-Known Member
First thing I'm doing is replacing cabin air filter.. I can't believe how dirty it has been.. Next thing to do is to buy one of those AC can refill.. Fan moves fine.. Just no cold air.. What else can I do? Thanks.
IMG_20160713_115119-480x710~2.jpg
 

wk1102

Well-Known Member
Try putting some gas in... you hook it up.. turn the air in max then open the gas.

Its a needle that you srew into the can then retract it.
 

wk1102

Well-Known Member
Get a kit with a pressure gauge on it. You should hear the compressor kick on and start sucking the gas.
 

Bill Collector

Well-Known Member
  • Thread Starter Thread Starter
  • #5
Stores don't loan out those meters for checking refrigerant levels.. So I'll have to purchase can with meter.. Hopefully that will solve the problem.. Considering I've never refilled in past four years, my guess it's probably running low.

As for rent to own, I'll pass. Thanks though.
 

wk1102

Well-Known Member
Stores don't loan out those meters for checking refrigerant levels.. So I'll have to purchase can with meter.. Hopefully that will solve the problem.. Considering I've never refilled in past four years, my guess it's probably running low.

As for rent to own, I'll pass. Thanks though.
Walmart or autozone 20-25 bucks.
Its a closed system you normally do not need to add gas. You may have a slow leak, when it gets too low, tje compressor stops coming on to prevent damage. You may be good for 2 years or a few months.
Once you have the the hoses to put it in, you can get a can of gas at Walmart for $5.00.

My expedition had a slow leak, i had to add it maybe every 8 months
 

EcoboostMKS

Well-Known Member
If adding refrigerant helps the problem, you most likely have a leak somewhere. Adding more will probably keep it cold for a week or two depending on the size of the leak, but will most likely only be a temporary fix. You'll need to find the leak and repair it. Buy the refrigerant cans with dye in it and use a UV light to find exactly where it's leaking. Not hard to do.

If you have refrigerant in the system and still no cold air, your compressor is most likely shot.
 

tohunt4me

Well-Known Member
Compressor will be $$$ then you have to change the screen,evaporator,new freon,new oil for compressor,vaccum system with vaccum pump prior to filling . . .just as soon change neoprane o rings in hoses . . .
 

Bill Collector

Well-Known Member
  • Thread Starter Thread Starter
  • #9
Just went and turned the AC on after the new cabin filter was replaced. Cold air did come out and the flow was much noticeable. However the "chill" was simply not as powerful. Maybe I'll need to drive for couple of miles which I can't do at my day job. Hopefully the compressor is still okay. AC cold pro is selling for $30 I believe.
 

BaitNSwitch

Well-Known Member
Add R-134a on your low pressure port (make sure the pressure is low).

If the pressure isn't low already, it's not low freon. If it is, adding freon should give you cold air. If its cold first and stops or starts blowing hot air after a few weeks/months only, there's a leak in the system.

If none of those things, it could be your AC compressor is fried. That will cost you atleast $500+
 

MSUGrad9902

Well-Known Member
The AC pro for $30 should do you just fine. After that if you need to add more you won't need the pressure gauge just get the refill coolants. Walmart usually has those for anywhere from $4 per small can to $10 for the larger cans.
 

uberron73

Active Member
Mine goes low so I just ad freon from time to time. But I have small leak. and can't find where the leak is. So I just add a touch of freon from time to time.I bother a hose with a gauge so I know how much freeform in adding cause you can add to much freon an you won't have cold air just like not haven't enough freon. Your issue could be a few things. If ur not mechanical then take to a shop for free estimate an they'll tell you the exact prb
 

Bill Collector

Well-Known Member
  • Thread Starter Thread Starter
  • #13
Mine goes low so I just ad freon from time to time. But I have small leak. and can't find where the leak is. So I just add a touch of freon from time to time.I bother a hose with a gauge so I know how much freeform in adding cause you can add to much freon an you won't have cold air just like not haven't enough freon. Your issue could be a few things. If ur not mechanical then take to a shop for free estimate an they'll tell you the exact prb
Local repair shop wants to charge $90 for diagnostics.. Bad thing is that cost won't be discounted if I decide to do repair..
 

wk1102

Well-Known Member
Local repair shop wants to charge $90 for diagnostics.. Bad thing is that cost won't be discounted if I decide to do repair..
Do you have auto zone near you?

The have, well had i think they still do, one with a $10 rebate. I think it was $25.
You get 10% off with the app. You can apply for the rebate online, take about 2 weeks.

If its cool air but not cold probably a little low.
 

EcoboostMKS

Well-Known Member
Local repair shop wants to charge $90 for diagnostics.. Bad thing is that cost won't be discounted if I decide to do repair..
Save yourself the $90, it's very easy to diagnose an a/c leak. I'd type out the process, but here's a video that should help. This is why they put uv dye in some cans, it's to diagnose leaks.

 

Bill Collector

Well-Known Member
  • Thread Starter Thread Starter
  • #16
Thanks for tips.. Looks like the filter definitely was the main reason why AC was not working.. Just called autozone and they said they will loan out the gauge to check refrigerant level.. Will fork out $30 if indeed that was the case.. I'm surprised one store says No and other says Yes for the same thing.
 

Bill Collector

Well-Known Member
  • Thread Starter Thread Starter
  • #17
The verdict is in. I was told the refrigerant level is okay and there doesn't seem like a leak. The problem is there is some kind of switch that is supposed to kick in every few seconds that helps circulate the refrigerant from compressor that is not working. According to the guy at the store, fixing this involves basically disassembling all AC components and replace with new ones. Parts alone cost $200+ and few hours of labor. There were two fans in front of the radiator and both fans work. But apparently just that is not good enough.

That means I am going to venture on working bar crowds. Hopefully drunks wouldn't get uncomfortable without powerful AC. Temperature drops down to 60s after sunset here in madtown this week.
 

BaitNSwitch

Well-Known Member
Yep, you got the worse case scenario. It's your AC compressor clutch that isn't engaging/disnengaging.

Putting in a new clutch and pulley might fix the problem, or you might have to get the AC Compressor replaced.

How many miles do you have on the car?
 

Bill Collector

Well-Known Member
  • Thread Starter Thread Starter
  • #19
Would rather haul drunks and suffer in rating than to plunk any money for major repair. Van has 200+k miles and is worth $2000 if that.
 

uberron73

Active Member
The verdict is in. I was told the refrigerant level is okay and there doesn't seem like a leak. The problem is there is some kind of switch that is supposed to kick in every few seconds that helps circulate the refrigerant from compressor that is not working. According to the guy at the store, fixing this involves basically disassembling all AC components and replace with new ones. Parts alone cost $200+ and few hours of labor. There were two fans in front of the radiator and both fans work. But apparently just that is not good enough.

That means I am going to venture on working bar crowds. Hopefully drunks wouldn't get uncomfortable without powerful AC. Temperature drops down to 60s after sunset here in madtown this week.
There sensors that works the compressor clutch that could be bad or a relay. I was told my compressor was shoot when I was having prbs with my ac an so I paid a shop to pinpoint the prb . first the reason my compressor wasn't kicking on was the plug was bad. so I went to junk yard an get a plug 5$an that fixed my compressor issues. Then it was leaking an fount out dryer was bad. So I replaced the dyer took to shop an had them vacuum system an add freon an now I'm blowing cold air an it's been soar hot this year so far.. Hope you figure it out. Its worth 90$ to take to shop to give you the real prb. You never know. It's holding freon, it could be a simple fix. Bad relay,fuse,plug or switch. You never know. Imagine nice cold air.. Awe
 
Top