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

a/c????

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Old 06-05-04, 11:22 AM
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dubbn355
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Default a/c

Is the 1991 ls400 usually r134 or r12?
Old 06-05-04, 04:56 PM
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jmblimo
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R12.

I think they switched to R134 in '93 or '94.

Last edited by jmblimo; 06-05-04 at 04:57 PM.
Old 06-05-04, 09:10 PM
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dubbn355
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Default a/c????

i have a 91ls400. I recently fixed my leaking a/c. I did not know that the 91's use r12. my a/c system was drained since this winter. So i put r134 in the system about 3-4 weeks ago. I have no probs so far. It's not making any noises and it works pretty good. Does anyone know if its ok to do this? Can i leave the r134 in the system? I did some fitting mods. please let me know. thanks
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