LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

really dumb question about AC

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Old 06-24-07, 02:02 PM
  #16  
PureDrifter
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Originally Posted by LiCelsior
anyway to convert to r134a?
yea, not tooo much money, ask google

theres also R12 substitute available but i have no experience with it
Old 06-27-07, 01:59 PM
  #17  
808-lexus
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ok, so i went out and bought the r12 to r134a converter and had someone start charging it. come to find out, the compressor is broken. apparently, the previous owner tried messing with it, so now it doesn't work.

just thought i'd update...
Old 06-27-07, 02:06 PM
  #18  
LiCelsior
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hmm i saw today on my front fan that there is a label that says r134a. so probably my ls was converted before?
Old 06-27-07, 04:50 PM
  #19  
sonyman
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Originally Posted by LiCelsior
hmm i saw today on my front fan that there is a label that says r134a. so probably my ls was converted before?
If it's a 1990, 1991, or 1992 model, then yes.
Old 06-27-07, 05:23 PM
  #20  
LiCelsior
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mines a 93 though
Old 06-27-07, 06:55 PM
  #21  
sonyman
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Originally Posted by LiCelsior
mines a 93 though
1993 and up came from the factory with R134a. There's nothing to convert.
Old 06-29-07, 03:51 PM
  #22  
SW07ES
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Even if you have a '90-'92 there is no need to convert since R12 is cheap and plentiful on ebay and so are the R12 can tap valves and charging hoses.

Your local dealer and AC shops won't tell you this because they'd lose business if they did.
Old 06-29-07, 03:56 PM
  #23  
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Originally Posted by sonyman
1993 and up came from the factory with R134a. There's nothing to convert.
CORRECT
Old 06-30-07, 04:09 AM
  #24  
Suneet
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How can you figure out which version you have?

EDIT: Some people said 93 and up all had R134a, but this didn't seem like a consensus.
Old 06-30-07, 08:12 PM
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r134a systems use quick connect couplings, r12 use externally threaded schraeder type valves
Old 06-30-07, 08:16 PM
  #26  
sonyman
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Originally Posted by Suneet
How can you figure out which version you have?

EDIT: Some people said 93 and up all had R134a, but this didn't seem like a consensus.
Consensus or not, it's a fact.
Old 06-30-07, 09:00 PM
  #27  
LiCelsior
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suneet, try checking on the engine fan in front of the car, behind the grill. there should be a yellow sticker that says r134a in the background.
Old 06-30-07, 10:49 PM
  #28  
avalon42
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The system was completely empty (no pressure or anything). I noticed that when I was replacing the service valves that the high pressure end was completely loose! So replaced the valves and I just put in 3 cans of R12 and some oil to recharge my system today. AC is blowing a smooth 58 degrees Fahrenheit (tested).
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