It's been open to the atmosphere for several years
They use both,Thought the pros used nothing I.E vacuum
J
Henry_b
Think outside, no box required.
More than likely need a new condenser/dryer if its been open to the elements.
Pro's try and pull a vacuum if It can and holds then its recharged, if it fails to hold a vacuum then the source of the leak has to be identified.
Otherwise it won't hold R134a..
Don't full it with air for godsake, you have a Low pressure side and a Hi pressure side, the fill always goes through the low press side.
Pro's try and pull a vacuum if It can and holds then its recharged, if it fails to hold a vacuum then the source of the leak has to be identified.
Otherwise it won't hold R134a..
Don't full it with air for godsake, you have a Low pressure side and a Hi pressure side, the fill always goes through the low press side.
Henry_b
Think outside, no box required.
Some A/C places add dye regardless of whether there is a leak or not, it makes finding any future issues easier..
To flush the system the correct way is to remove the refrigerant hose from both the high and low sides of the condenser. Fresh fluid will be poured into the high-side inlet on the condenser. Subsequently "the only time Air is introduced" compressed air will be added into the high-side, forcing the shít from the outlet hole in the condenser, until any and all contaminants are removed from the system.
Also seen a pressure valve that should be removed, might be on the bulkhead somewhere, could be gummed up and not working. Worth checking before doing any work i think
hi
don’t know if this helps u, my ac hadnt worked for ages , I used air to fill the system up first to find the leaks , know ur suppose to use nitrogen , but I was going to fit a new dryer and air had been in the system because it had been leaking for ages
Found my leaks using soapy water , was on the condensor , so replaced that and a new dryer , then used one of the oil extractors to pull a vacuum , everything was fine
then took it to a company who done the vacuum test yet again and also pressurised it , as sometimes systems can leak under pressure and not a vacuum or vice versa
after they proved it wasnt leaking they re filled it with the correct amount of PAG oil and R134 and all sorted out
I done all the tests on the low side using an ac gauge set
of course they may need to add dye if they can’t see the leak
hope that helps
You're spot on there. Never thought of that one
tomcat59alan
Well-Known Member
tomcat59alan
Well-Known Member
You will hear the clutch click in.if the engine is running you will feel one pipe warm up and the other cool.dont run it too long hot wired.
Engine off sounds safer
