Greg Bell

'HVAC guys will throw up over this low tech recommendation but it seems to work for me over many years and two 911.'

People concerned about the environment may get a little concerned too.

Rick512

yes, tested Foglight Relay, its OK

pp000830

Hi Greg,
A good point,
Somewhat of a philosophical issue, as I would think, eventually all refrigerant ends up in the environment eventually no matter how diligently we try to capture it.
Andy ;-)

wallyman424

I would caution against blindly adding coolant to the system. Rent or purchase a set of ac gauges and check the system pressure first. You can make things worse if you end up overfilling the system.

Rick512

I will Andy, seems too coincidental that battery goes dead, then AC stops working. but anythings possible, Love these cars

Railmaster.

My AC stopped working after the winter lay up, just had it refilled, if it works for at least a year between fillings I will leave it att that!

There is a minor leak i one of the pipes, was quoted $880 for the work and $4400 for the parts, that included all four AC pipes running under the car but I bet it's just one of them leaking! They put dye in the new refridgirant so I can see where it leaks!

$5000+ to fix an leaking AC pipe...

wallyman424

I agree with you, if its such a minor leak thats no problem. However if his system pressure is fine currently and he adds a can of refrigerant to it, he could over pressurize the system and create leaks or at worst damage the compressor.

AC gauges can be had on amazon for 40-50 dollars, or rented from your local auto parts store for free. No harm in getting actual numbers before you add coolant.

pp000830

Yes, Some of the brands of refrigerant a Walmart come with a gauge right on the can's valve. I suspect it is for the reason you describe,
Learn something good every day, thanks,
Andy

Rick512

Hi Andy, after checking everything, turns out coincidence . battery went dead, have a very slow leak. recharge put back in business. I have a friend with a 993 who mentioned the rubber hoses can deteriorate over time and allow leakage as well as the known evaporator .thanks for all the input from everyone

ToreB

I have never seen leaks on the 993 A/C rubber hoses, but it could of course be the case. I have, however many times seen problems on the following components:
-Evaporator (most common cause for leaks, and the most labour intensive to fix)
-Aluminium piping in the door sill (holes under the rubber mounts)
-Filler schrader valves (does not close as designed)
-Condenser (debris or other damage to the radiator)

I would recommend to have the system inspected by a specialist, and pay special attention to the evap, accessible through the resirc flap.

Cheers,
Tore