mjr46

when adding freon, you need to add the proper amount, more is not better and to much will reduce the systems ability to operate and cool the car effectively.

projectresto83

Also, just using the cans from the parts store will not always make things better either. Systems also need to be properly vacuumed to remove the oil that is in the system so it can be filled properly. Getting it vacuumed will also let you know if it does leak or not.

DRAGUL

pulling a vacuum is not for removing oil. you do not want to remove the oil and if you loose to much you have to add. you pull a vacuum to remove air and more importantly moisture. moisture = acid and death of a compressor. If you do not know what you are doing have someone that knows how to check and recharge

mjr46

irregardless , it still happens when a vaccum is pulled on the system, which is why my machine goes into a purge after system is pulled into a vaccum, often 1-2 onces are purged

lehrskee

well today i bought some 134a and put it in. the compressor kicks on for about 5 seconds then shuts off for about 30 and repeats it self over and over. still blowing warm and gauge reading 50psi when compressor is off and well below 20 when compressor kicks on. im lost.

TrimDrip

edit: v do what he said.lol

mjr46

how much freon did you put in??? could still be low.........is 50 the high side reading?? and below 20 the low side???.....if so sounds like it's still low on a charge....first answer how many ounces you put in??

DRAGUL

mjr46 I do commercial refridgeration not autos not familier with your recovery/charging machine.

lehrskee if the compressor is working now that you added refridgerant this is good your charge is still low and you will need to add more

mjr46

you can't confirm that until you know what's going on with the high side, low side often is draws into a vaccum when a restriction exists as such, unless the OP has a set of gauges to monitor low and high side, I say at this point take it to a qualified tech

TrimDrip

yeah I edited it. read the post a little different the second time.lol

I think those self kits do the low side. so he probably doesn't have enough in it.