2005 Ford F150 AC charge

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  #1  
Old 08-14-15, 09:27 AM
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2005 Ford F150 AC charge

I have a 10yo system on my truck that has never been serviced. It still blows pretty cold but the low side pressure is 38 psi where the charts call for it to be 45-55 psi at 90 degree ambient. Should I add some R134a to it?

Big pipe is cold and wet(low side) and smaller diameter pipe warm. Outlet temp on max is about 40 degrees cooler than ambient. Condenser fins are free of obstructions.
 
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Old 08-14-15, 04:11 PM
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really see no reason to be checking pressure or adding Freon unless you are having some problems with the a/c performance your outlet temp seems very good.
 
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Old 08-15-15, 12:43 PM
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Thank you Alan! That is what I'm starting to understand ........that actual system performance, temp splits, etc..........is more important than dwelling on system pressure. I will leave well enough alone for now.
 
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Old 08-15-15, 02:09 PM
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Just for future reference.... we do not discuss refrigerant system pressures and charging methods here at DIY.

http://www.doityourself.com/forum/ai...ng-your-c.html
 
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Old 08-16-15, 04:56 AM
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I'm sorry, I somehow thought that only applied to home systems since the sale of those refrigerants here in GA are restricted to professionals. We can buy 134a in WalMart here all day long. I will comply in the future.
 
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Old 08-16-15, 10:12 AM
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It appears that I am incorrect and that the car systems and pressures are allowed for discussion.
 
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