this is called the lower switch
under the power steering pump in the top of the engine.
It is located under the black air breather on the driver's side.
in the far left hand side. right above where the belt is . it is kind of hidden just under the windsheild.
The spare tire on an Oldsmobile Silhouette is located in the very back, under a carpet piece. The tire is mounted in a flat position.
=It should draw from the reservoir under the hood.== =
It is under the hood next to the engine.
under the hood of the van,there is as under hood fuse box,its in there!
under dash on right side three bolts
it is on the passenger side at the front under the hood next to radiator
Under the steering wheel
Look in the fusebox for a round silver or chrome thing that just plugs in, if it isn't in the fusebox it will be up under the dash under the steering column.
On an Olds Silhouette it is under the cover for the wiper arms on the passenger side of the van