93 SC-300 AC uses R134 or R12??
06-02-05, 03:37 PM
#5
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i had a can of R134, and hood it up to the charge hose and the charge hose fits right on the AC fitting, the AC fitting is on the passenagerside under the intake, kinda right by the strut tower....so how can i tell if the car got converted to R134 or not?...
by the way, when i was trying to recharge it, since the AC compressor is not kickin on, so it will not taking in any charge....
by the way, when i was trying to recharge it, since the AC compressor is not kickin on, so it will not taking in any charge....
06-02-05, 08:56 PM
#6
on the hood, there should be a sticker informing you what type of freon you should be using -- if it's converted to R134a, then it will say so. If it's stock R12, it should say so as well.
06-02-05, 09:53 PM
#7
Mortgage Slave
For a 92 model SC (or 91~93 Soarer, from memory), you should have R12 gas in there, I dunno in the US but it's illegal to regas using this stuff. My car's aircon went so I had an R134 aircon retrofit.
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06-02-05, 10:35 PM
#8
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from 96 and down use R-12 and 96 and up uses R-134a if your a HVAC tech u can use your normal gauge on R-12 but if its a 96 and up the HVAC gauges wont fit because the conection will be too small u will have to use a different set of gauge with bigger hose
06-03-05, 12:19 AM
#10
Lexus Champion
hmm... the 1993 LS400 used R134a, the cut off date was either 1995-1996 before R12 was banned. You can still get R12, but it's either old stock virgin R12, recycled R12, or black market R12. And you need a EPA 609 license to even hold the stuff, not to mention it's expensive.
06-04-05, 12:56 PM
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The reason why your compressor isn't kicking on is probably the pressure switch which is located on near the passenger side strut tower on the line itself. There is a 4 pole plug there. We recharged my car with R12 (heh... went to my buddy's shop and he slipped it out, didn't know that it was illegal to recharge the car with it still.) but didn't get the compressor to kick on once it had a charge. My buddy Drew jumpered the switch to put on the compressor. He basically put a wire between the top and bottom pins to hardwire it while we were charging the car.
The pins are in a cross formation, and it was the top and bottom ones that he jumpered.
I haven't priced this switch at the Toyota dealership yet... but it's probably hellactiously expensive. A more permanent solution would be to wire in a jumper with a 15 amp fuse just to be safe. This is still a hack and to be perfectly safe you'll have to replace the part... unforunately you'll loose some refrigerent in the process since it's sensing pressure. in the system.
It probably burned out the switch when you were running the system low on refrigerent, that's what my buddy figured happened on mine.
The pins are in a cross formation, and it was the top and bottom ones that he jumpered.
I haven't priced this switch at the Toyota dealership yet... but it's probably hellactiously expensive. A more permanent solution would be to wire in a jumper with a 15 amp fuse just to be safe. This is still a hack and to be perfectly safe you'll have to replace the part... unforunately you'll loose some refrigerent in the process since it's sensing pressure. in the system.
It probably burned out the switch when you were running the system low on refrigerent, that's what my buddy figured happened on mine.
