Engine Problem with my 2000 Oldsmobile Alero.
Engine size = 3.4 V6.
Question: I need to see if there are interchangeable engines. Like a Cutlass or something. And if so what years?

3.4L v6 engine from many different years and different make / models will fit. Some changes would need to be made depending on the model or years the engine was from. If going with a junk yard motor, they would have the info to cross reference what years are interchangeable.
Oldsmobile 1999 Alero.
Question: I can't locate my car's engine number,and have not registered it yet as a result of this. The engine number is needed to register the car in my country(Nigeria).

The engine numbers are usually on a flat spot on the engine block near where the cylinder heads attach to the block. The area is probably rusted over since the car is 11 years old and would be hard to find and see. If you can find the area, it can be cleaned with a wire brush or solvent so you can read the numbers better.
Oldsmobile Alero Engine Swap, Power Steering Question
Oldsmobile Alero 2000 2.4L.
Question = I was stuck in snow, and my wheel was turning very easy; but when I start to drive I lost the
power steering. So is very hard to drive the car now. It's this a computer or mechanical problem???

This car does not have electric power steering, so it would not be a computer problem..Most likely the power steering pump shaft has broke. Push and pull on the power steering pump pulley to see if t moves in and out more than an 1/8 inch or so. If it does, then the pump needs to be replaced, then the system bled of air.

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