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AC has freon, but only so cold.


ATAT's Avatar
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06-28-02, 07:59 AM   #1  
ATAT
AC has freon, but only so cold.

I own 4 (yes four) Aerostar Vans, and I can tell that some have colder air than others.

All 1993 year, and one I had checked out was 'full' of freon.

What can I do to get it from so so to ice cold?

(or at least improve it?)

Thanks big ice cubes in advance!

ATAT

 
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06-28-02, 03:29 PM   #2  
Joe_F
What kind of pressures are you seeing with your A/C gauges? What conditions are the systems in? Are all R12 or R134A equipped? R12 tends to be colder.

 
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06-28-02, 05:59 PM   #3  
ATAT
<What kind of pressures are you seeing with your A/C gauges?>

My mechanic said the pressure was 'full'. He put a hose on it.

I was willing to pay to add more, he said there'd be no point.

I asked him why my other Aerostar (same year, '93) was colder.

He said some systems are just better than others.

(I am looking for something I can do to improve it).




<What conditions are the systems in? Are all R12 or R134A equipped? R12 tends to be colder.>

He said the van in question was the old R12.


It could be more comfortable, but it's not unconfortable.

Any suggestions as to what could be done (without having to replace everything?)

Thanks for your reply and help.

This particular van (with the air I wish to improve) is the '4.0' larger engine, and I'm pretty sure it's larger than the colder sister van.

Thanks for your reply, Joe , I shall come back to see if you have anything more.

Akiva
Some family pictures:

http://www.geocities.com/atat8080/

 
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06-29-02, 06:12 AM   #4  
I don't know if this will make all the difference that you want, but if you clean out the condenser (in front of the radiator) so there's no bugs or gunk clogging the air flow through it, you'll get somewhat better cooling.

You could also have a problem with the flap that directs the air through the heater core. If it's not sealing off the heater core from the airflow you'll get poor cooling.

If you have poor air flow out the vents, your evaporator core may be dirty as well (the cold radiator that makes the air cold). That would not be as easy to clean as the condenser.

Make sure your fan clutch is working good. When the engine is hot shut the engine off. If you can spin the fan easily with your hand (and it doesn't stop pretty quickly after you spin it) then it needs a new clutch. But this should only effect the cooling when you are stopped or going very slow.


Good luck.

 
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06-29-02, 07:41 AM   #5  
Joe_F
Those are all very good suggestions. Good job!

 
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06-29-02, 04:24 PM   #6  
Why thanks!

Even though you haven't had the opprotunity to help me (yet) I notice all the help you offer here. Good job to you too!


 
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07-01-02, 09:10 PM   #7  
ATAT
Fantastic!

I'm very thankful to you for these.

Will let you know how it turns out in about a week or two.

Big thanks!

@@

 
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07-22-02, 03:44 AM   #8  
ATAT
I've been driving other cars, so I put off doing the simple suggestions. I want to do it today...

 
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09-27-02, 06:57 AM   #9  
ATAT
My (second) mechanic did water spray the front of the radiator.

It didn't do anything.


Then, about a month or two later, he put in two cans of freon (old type), and it's working fine now (two weeks).


Strange because I saw the hoses the first mechanic had attached to the freon showing they were full.



And, there is a huge difference, before it was apparantly warmer than outside air.

Now there is clearly refrigerated air.

I don't get it.

 
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09-27-02, 08:34 AM   #10  
Joe_F
Perhaps the wrong gauges were used or the first guy didn't know how to read the readings...

 
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