[DML] AC Rubber tubing

["sweetp01569" <paul.sweet@xxxxxxxxxxxx>]

I had my R134A recharged last summer, and the AC felt nice and cold at 
that time  This year, I really don't feel any cold air coming through 
and the compressor just turns on and off for about a second every 5 
seconds or so.  I suspect my charge is gone.  I read that older R-12 
rubber tubing (I suspect those that run under my car are original) 
will actually let the R134A pass through the molecules of rubber, 
resulting in a slow leak over the winter.  Is this true?  If so, is it 
worth investing in Special T's spliced tubing (I don't have time or 
patience to lift the car body to replace with whole sections) and 
replacing the long runs under the car?  Can I just replace them easily 
myself, or do I need an AC shop to evacuate any remaining R134A for 
safety/environmental reasons - or is there not enought to worry about 
if I open and replace the tubing before I bring to an AC shop to 
recharge?  Any advice on this subject is appreciated.

Thanks,

Paul
Vin 10944








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