above heater controls center of dash
By using water
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4 pounds aproximatly
Follow the link below to the Previa user group.http://autos.groups.yahoo.com/group/previa/message/32333
approx 6.1lt
chain chain
I have a 93 previa. I took it to a mechanic because it wasn't cooling. they recharged it after replacing the nipple on the system with one that takes the newer freon.
The temperature sending unit on a 1993 Toyota Previa is typically located near the thermostat housing, which is situated on the engine block. You can find it on the driver's side, towards the back of the engine, near where the upper radiator hose connects to the engine. It's a small sensor with an electrical connector attached to it. Always consult the vehicle's service manual for precise details and diagrams.
Most auto parts retailers can help you.
push the a/c buttom in and lift the lock gently and take the cover off
Call Toyota and give then the radio model # they Ill give you the code
Driver side 1/2 way back under the along the edge.