Lexua LS 400 expansion valve

sisterpete · 06-18-2008, 01:10 PM

trying to find a tutorial on how to change this... i've been told it is under the dash somewhere attached to the evaporator

wrench97 · 06-18-2008, 01:26 PM

Quote:

Originally Posted by sisterpete

trying to find a tutorial on how to change this... i've been told it is under the dash somewhere attached to the evaporator

If your in the USA your going to have to have some legally recover the refrigerant from the system before you start. Most likely the expansion valve is what is called an orifice valve located in the high side line just before the evaporator at the firewall under the hood. you are also going to need to change the accumulator/receiver-dryer once you open the system. then before charging you will need to evacuate the system by pulling a vacuum with a vacuum pump for at least 30 minutes to get all the air/water vapor out of the system. If you are not equipped to do all this I don't recommend you try it. Because once you install the accumulator/dryer if left to normal atmospheric conditions they will need to be replaced again in a very short period of time.

sisterpete · 06-18-2008, 01:29 PM

Quote:

Originally Posted by wrench97

If your in the USA your going to have to have some legally recover the refrigerant from the system before you start. Most likely the expansion valve is what is called an orifice valve located in the high side line just before the evaporator at the firewall under the hood. you are also going to need to change the accumulator/receiver-dryer once you open the system. then before charging you will need to evacuate the system by pulling a vacuum with a vacuum pump for at least 30 minutes to get all the air/water vapor out of the system. If you are not equipped to do all this I don't recommend you try it. Because once you install the accumulator/dryer if left to normal atmospheric conditions they will need to be replaced again in a very short period of time.

thanks for such a fast reply....

06-18-2008, 01:10 PM	#1 (permalink)
sisterpete Registered User Join Date: Dec 2007 Posts: 3 OS: Windows XP Home My System	Lexua LS 400 expansion valve trying to find a tutorial on how to change this... i've been told it is under the dash somewhere attached to the evaporator