Latoilette Posted June 2, 2004 Share Posted June 2, 2004 it's weird. when i got the car, a/c worked great. Then, after driving 1200 non-stop miles, a/c died. the next day, a/c didn't work. but the next day, a/c worked great. I thought it was the compressor, so i replaced the compressor. I didn't chance drier, expansion valve, and I did not vacuum the system out before charging. Instead, i installed a new compressor and charged it with freon. (so it is possible that i have air in the a/c system) anyways.. it worked great for a few days until i had to put another 400 miles on the car. A/c works only when i drive around short distances.. but for after driving more than 300 miles, a/c doesn't work for two days. Any suggestions? Quote Link to comment Share on other sites More sharing options...
steviej Posted June 3, 2004 Share Posted June 3, 2004 sounds like the expansion valve. This is a common problem on the 1st gen. ES's. you stated you didn't change this, right? steviej Quote Link to comment Share on other sites More sharing options...
booner Posted June 11, 2004 Share Posted June 11, 2004 Where is the location of this expansion valve? Can it be seen not taking anything off? Quote Link to comment Share on other sites More sharing options...
amf1932 Posted June 12, 2004 Share Posted June 12, 2004 I suggest that this type of work be done by a qualified person that has the proper equipment. It definitely is not a do-it -yourself job!! Warning: The air conditoning system is under high pressure. Do not loosen any fittings or components until the system has been discharged. Air conditioning refrigerant should be properly discharged into an EPA-approved recovery/recycling unit by a dealer service department or an automotive air conditioning repair facility. Quote Link to comment Share on other sites More sharing options...
TxWolf53 Posted April 23, 2005 Share Posted April 23, 2005 I also have a expansion valve that needs changing. I can get it emptied out by someone quialified just need to know where under the the dash it is hidden (1994 ES300). Was quoted about $450.00 to do the job. Hoping to reduce that down by changing out the expansion valve and dryer myself and then getting it recharged afterwards. No manuals give any details on it nor does the Lexus dealer have info on where it is. Thomas Quote Link to comment Share on other sites More sharing options...
camlex Posted April 24, 2005 Share Posted April 24, 2005 $400-450 is good price. This is NOT an easy job. \ \ Quote Link to comment Share on other sites More sharing options...
IlyaIlya Posted April 24, 2005 Share Posted April 24, 2005 what can cause the AC /heat not to work at all? The panel shows that its on but no air comming from the vents? Quote Link to comment Share on other sites More sharing options...
camlex Posted April 24, 2005 Share Posted April 24, 2005 check fuse for fan if you don't feel any air circulation Quote Link to comment Share on other sites More sharing options...
IlyaIlya Posted April 24, 2005 Share Posted April 24, 2005 where is the fuse? in engine bay or next to left foot inside car? plus which fan are you talking about? Quote Link to comment Share on other sites More sharing options...
camlex Posted April 25, 2005 Share Posted April 25, 2005 you wrote this "The panel shows that its on but no air comming from the vents? " A/c Heater blower fan please look your manual they will show all location for each fuse. Hope this help. Quote Link to comment Share on other sites More sharing options...
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