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Well i have determined that it is the REAR EVAP Core that needs replacing because of the leak coming out of it when i turn the A/C on. I can feel it pumping air out or freon with my hand.
I have heard and read that whenever a major component of the A/C system is changed that i must also replace the drier too, if i replace the rear evap core.Is that true.
How much oil and or freon needs to go into the system once it is fully evacuated,or can i just fill it with freon after i replace the drier and evaporator core.
yes you always replace drier. Keep in mind you are going to need special tooks to remove the connectors on that drier.
As far as oil goes, 1 can would be fine and system may take up to 3cans of freon...that i dont remember much but you have to watch your gauges and from time to time go inside and see if it feels cooler or get a temp gauge for the inside.
see if you can rent a pump or borrow one from a buddy?
i know they are quite expensive......but they do the job well....perhaps you can buy and return (as a technically defective item to the store)???
Find all that out jeje.........
but yes you can do all yourself, heck i did it 3 yrs ago and truck still running on awsome AC per my mother who's got it in FL.....Thanks god it stayed in the family....99f150 5.4L flareside supercab....
You need a recovery machine to legally remove the remaining freon from the system, then once you replace the bad parts, you need to vacuum the system down to 29.92" of vacuum for an hour or so to boil out any moisture in the system before you recharge the system.
LxMan1 as deltasoft said i would be doing this in a garage,it is ridicoulous that they want to charge me 200.00 for an evac and then 150.00 for the accumulator,150.00 for the evaporator,100.00 freon, and 500.00 labor.So a grand to just replace some simple parts!!
I don't see what the big problem is to empty it yourself right into the air. Have you ever looked at the contents of an R134A can?
Do this some time. Go to your local Wal-Mart and get a can of R134A. Then go to the electronics department and get one of those spray cans of air that you use to blow out dust from keyboards, etc. Compare them. They are the exact same thing.
Zarillous-you can do it yourself but I do not agree with the idea of buying the vacuum pump then returning it after use as "defective" This is the sort of thing that makes everything more expensive for all of us. If you have a leak, chances are the system is already empty. Open the system to verify that it is empty(using guages and a manifold) then replace the parts. At that point by the time you buy the equipment you need to do the job right, you can pay a local shop to evacuate the system and recharge it.
I don't see what the big problem is to empty it yourself right into the air. Have you ever looked at the contents of an R134A can?
Do this some time. Go to your local Wal-Mart and get a can of R134A. Then go to the electronics department and get one of those spray cans of air that you use to blow out dust from keyboards, etc. Compare them. They are the exact same thing.
Dale
Air dusters are usually R152a these days. The difference between these is that one is legal to dump into the air, and the other is not, and posting something like that on a forum is good way to have the EPA knocking on your door.
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