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the expansion valve it's located inside the line of the A C bottle, but if you open the bottle wish is located on the lef side under the hood , you will need to replace the bottle bacause the system can"t have air inside. you will need to have the system vacumed anf fill by an ac mechanic before you do this you need to take out all the freon of the system and then proceed with tha above
The expansion valve is located in and with the evaporator, inside the evaporator case. This case is a somewhat square, plastic enclosure located directly behind the glove box on this vehicle.
the PCV valve is located on the valve cover of a 1991 Regal Custom. It is plugged in and can be easily changed.
The PVC valve for a 1991 Skylark should be located on the top of the valve cover. It is a plug in type, twist and pull to remove.
There is no cabin ari filter on a 1991 Totyota Previa
on the valve cover
disconnect battery, disconnect the starter, disconnect the starter mount bracket from the engine and you can access the egr valve no need to lower the engine good luck
The 1991 Geo Metro EGR valve can be located on the air cleaner housing. The valve will be on the back of the housing.
Look underneth right beside the shaft going to the front
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The location for the idle switch of a 1992 Toyota Previa mini van can be found in the Toyota Previa Auto Repair Manual 1991 thru 1995. This can be purchased from the Toyota dealership.
Turn the key to acc. and push the plunger in located on the Ignition lock housing