A/C problem after R134a conversion, please help.

[Sal 87WE2]

Sal-give me a call and I ll see if I can go over this with you-matt 347-680-8642, before you jumped out the lp switch and started the car you should have just hooked up your refer hoses, purged the lines of any air and non condensible and statically charged the system with refrigerant until both sides equalized then started the car and proceed to finish charging system.

Matt, thanks. i will call in a bit from a 281 area code.

 

[49-blues]

Sal-another problem you maybe having is when you change from 12 to 134 you should install ester oil-only if it was already 134 should you use pag oil.

 

[charlief1]

One other thing you may need to look at is the conversion fittings. If they're the aluminum ones I've had issues with them before. See if you can find some of the brass or steel ones.

 

[Roger]

Compression union at Lowes $4. Compression union at NAPA certified for A/C $26. $26 compared to new evaporator, lines.compressor,drier costs - oh well, I bit the bullet, can't let one cheap componet ruin the whole system.

Waiting for FedX to deliver stock original evaporator - I was out Saturday & missed the delivery.

 

[TIMS87GN]

Sal, Did you ever get this system going again? Just curious.

 

[Sal 87WE2]

Sal, Did you ever get this system going again? Just curious.

Tomorrow is the day. I ordered another compressor, this time AC Delco, and a new set of hoses from GM. I will try this all over again tomorrow after lunch. I am hoping the culprit was the Four Seizens Compressor(s)... The AC delco was the same price as the damn aftermarket, i didnt know that until i found out i could get an AC Delco locally...

 

[dr_frankenstein]

Compression union at Lowes $4. Compression union at NAPA certified for A/C $26. $26 compared to new evaporator, lines.compressor,drier costs - oh well, I bit the bullet, can't let one cheap componet ruin the whole system.

Waiting for FedX to deliver stock original evaporator - I was out Saturday & missed the delivery.

hey you got a part number for that fitting?

A.j.

 

[Sal 87WE2]

O Reilly's has the Murray brand 16149 or 16152 super easy and all you need is mini tubing cutter.

 

[Roger]

Finally got ahead of the leaks, now I need to properly mount everything & evacuate & evacuate & evacuate.

Bypassed the fitting fron line off compressor to condenser - using hew multipath type condenser.

 

[Roger]

Oops , last post was an error. Lost almost 1 pound 70 - 69 overnight. The two new driers (made in China) are leaking at evaporator fitting. Only item I tossed out is my old drier, have another used one comming (I'll put it in momma's oven when she's at work).

 

[Sal 87WE2]

SUCCESS!!!!!

I said screw it and took it to one of the A/C Mechanics here at the dealership where i work. He charged it without a problem on the high dollar machine they have here. I asked him why when i used the cans they would freeze up and the system would not take in any R134A?? He said when he does A/C work at home, he uses the cans BUT he wraps them in a heating blanket to warm them up and force out the R134A. Man, i am so relieved i feel like a huge load has been lifted from my shoulders!!

Thanks to Everyone ESPECIALLY CharlieF1 who called me the other night on the phone to try and help me out.

Thanks!!!!!!!!

 

[charlief1]

Sounds like the guage set is messed up Sal. The only time I ever have to use a heat blanket or a warm bucket of water is when I'm using R-12 or it's fairly cool out side. Glad to know you got it working and you have my number if you run into any other problems.

 

[Sal 87WE2]

UPDATE

it was 100* the other day and the ac was blowing below 40* at the vents. I sealed off the front end by reusing the dams that fit behind the header panel so all incoming air is forced through condenser. I think that is helping. Anyways, just wanted to let everyone know all is great with the conversion.

 

[charlief1]

UPDATE

it was 100* the other day and the ac was blowing below 40* at the vents. I sealed off the front end by reusing the dams that fit behind the header panel so all incoming air is forced through condenser. I think that is helping. Anyways, just wanted to let everyone know all is great with the conversion.

Glad to hear it Sal.:biggrin: Any other issues you have send me a note and I'll see if I can help you out.:smile:

 

[Roger]

Major problem is you are trying to use a type of freon our cars were not designed for.

Unfortunatly now the system now has to be completely dissasebbled & each component thoroughly flushed & turned & twisted during flushing.