The under hood sticker lists the refridgerant capacity.
sienna refrigerant
12 volts.
1.88 lbs (0.85 kg) of R-134A refrigerant.....
90 LBS
Depends on the engine... need to be more specific.
you cant!! you need a charger
one of the cables need adjusted or there is a switch on top of the brake pedal that needs adjusted.
Approximately 2-3 lb. for a full charge, starting from scratch. (This is a typical figure for most automotive air conditioning systems, to estimate how much refrigerant you need on hand.)
If the charger plug will not fit into the jack, you have the wrong charger. You need to find the right charger for that device.
The type of refrigerant that an E 34 needs is R12 refrigerant. It is absolutely necessary that you do not put any other type of refrigerant into a R12.
Most likely the refrigerant you need is 134a, there should be a sticker somewhere in the engine compartment telling you the type and how much your system requires.
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