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replace a fuel filter on a 1999 Oldsmobile Silhouette
It is located at the rear of the van on the driver side behind the gas tank
Should be in a removable housing at the engine end of the upper radiator hose
This is difficult to do. it is located on the top of the engine on the right side. If you remove the air breather box first it will give you some room to work but the back bolt on the thermostat is really difficult to get out due to lack of room to move the wrench. it takes several hours lots a patience.
behind the power steering pump
8 quarts
The thermostat is located where the hose leaves the engine to go to the top of the radiator. You unscrew the bolts holding the hose mounting to the engine. There you find the thermostat.
Follow the top radiator hose down to the water outlet on the engine; the stat is in there.
4.5 Quarts of oil.
Use a straight edge.
that would depend on the year, but my 1999 (and newer models) have a 3.4L v6
It is under the hood next to the engine.