Follow the link below to the Previa user group.
http://autos.groups.Yahoo.com/group/previa/message/32333
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above heater controls center of dash
como remplasar blower ac heater paseo 1993 toyota
By using water
4 pounds aproximatly
if it is an import you can get a fitting to change it to the UK fitting from halfods for about £15-00
approx 6.1lt
chain chain
It is under a panel above the heater controls in the center of the dash . A small thumb latch holds the panel down. Push up on the panel while holding down the latch
how do you change the heater hoses on 1993 chey lumina 3.8 liter
The reservoir automatically replenishes oil in the oil pan if it is burned away. It was made for the consumer who doesn't change oil regularly.
Most auto parts retailers can help you.