Need Help Locating Ac Low Pressure Port

asleynes · July 28, 2009

Hello All,

my ac on 1992 es300 not blowing cool air and i need your help locating the low pressure port and that maybe i just need to refill a freon, also need an advise.

thanks in advance

homemechanic · August 1, 2009

my advice: STOP. . .STOP. . .STOP. . . .

hope you got the message by now.

92 ES300 is probably NOT using the newer freon that you can buy from the auto part stores. If it is using the R12a (the old type), you cannot mix the new type and the old type. I believe the new freon started around 94-95 time frame, but definitely by 97. So check which type of freon your car is using. You can find the label somewhere.

I believe the auto part stores might still sell the conversion kit. However, you have to have a professional to drain the old freon first. Releasing freon into the air is illegal, and if any freon gets into your eyes, you can go blind quickly.