[DML] Re: more AC stuff - rattling?

["David Teitelbaum" <jtrealty@xxxxxxxxxxx>]

That rattling noise you hear is probably slugs of liquid and gas
passing through the hose when you first start up the A/C until the
pressures stabilize. It could mean an overcharge but I suspect it has
more to do with the fact that Freeze-12 is not R-12 but probably a
blend of several refrigerents, some which condense out and some which
don't when the system shuts down. If the system seems to operate
normaly (except for the noise) then try strap-tying the hoses tighter
and/or using foam to jam in between the frame, underbody, and hose to
keep the hose from jumping around. If you hear the compressor making
bad sounding rattling noises then it is pumping liquid and that will
be bad for it's longevity.
David Teitelbaum
vin 10757


--- In dmcnews@xxxxxxxxxxxxxxx, "sweitzel_2000" <sweitzel@xxxx> wrote:
> So I have my AC charged with Freeze 12. Everything is working great. 
> It blows nice and icy cold as well as hold pressure. No leaks. 
> 
> However, I noticed an interesting thing. Once the car has sat 
> overnight, if I turn on the AC for the first time the next day, i get 
> a nasty rattle within what I presume are the hoses underneath the 
> car. I can feel it in the driver's seat. The rattling last for only 1 
> possibly 2 seconds then immediatly quiets and goes away, from that 
> point, the system operates completely normally. Would this be a sign 
> of overcharging or something else possibly?




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