AC York Compressor Clutch Acting Up!!!

[Mark Rosenkrantz]

There are 2 ways to do it correctly.  One is with guages hooked to both the
low pressure and high pressure ports.  This is standard on most cars.  VAG
only has one port (officially, but some cars can have a port attached at
the compressor for high pressure) and the only way to charge a stock car is
to completely evacuate the system and then fill with a measured amount.
Both under charging and overcharging is poor for performance as well as the
compressor itself.

I think this is STUPID as there's no way to "top off" a system after years
of service (IMHO, all systems leak a little over time).  For example, my
Escalade needed topped off after about 6 years.  Just a little, but it was
needed.  Nothing "wrong" with the truck.  VAG's procedure would have been a
full evacuation and recharge from a scale.

Mark Rosenkrantz

On Mon, Mar 19, 2012 at 8:30 PM, Bill Green <wgreen56 at tampabay.rr.com>wrote:

> Maybe so I'm no professional that's for sure. My only experience is with my
> own cars. I have a set of gauges I use because there's no way for me to
> monitor how many ounces are actually in a system, whereas I can always
> monitor pressure to let me know if the system is fully charged.
>
>
>
> -----Original Message-----
> From: Huw Powell [mailto:audi at humanspeakers.com]
> Sent: Monday, March 19, 2012 9:56 AM
> To: Bill Green
> Cc: quattro at audifans.com
> Subject: Re: AC York Compressor Clutch Acting Up!!!
>
> I thought AC charges were supposed to be measured to spec, like, say, 20
> ounces of refrigerant?
>
> On 3/19/2012 6:35 AM, Bill Green wrote:
> > "I guess I wasn't clear... I meant under what conditions is it
> > *supposed* to turn itself off (like high engine temps?)."
> >
> >
> >
> > It is designed to turn itself off when under-pressurized or
> > over-pressurized. Maybe you do not yet have enough R134a in system?
> > Possibly the pressure only rises enough when above 1500 rpm? Just a guess
> really.
> > Maybe you should buy or borrow a set of gauges to monitor the pressure
> > as you charge it.
> >
> >
> >
> >
> >
> >
> >
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> >
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>
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