It depends on why the old pump failed.
The pump is going to cost between $130 and $175
The labour to change it will be between $75 and $200
If the pump failed in a way that put metal into the steering box or rack or the rack failed and damaged the pump a thorough flush will be required at a cost of over $100.00
At th power steering pump reservoir.
regular power steering fluid is all you need.
the power steering resevoir, MAKE SURE the vehicle requires power steering fluid, some use transmission fluid instead. If your unsure take it to a lube center and ask them to do it you. In the 2004 Chevy Impala with the 3.8L engine, the power steering pump is a sealed unit. It does not require fluid to be added. Also if you have to replace it, it is not an easy job. The power steering pump is above the transmittion and behind the center of the engine.
Power steering pump reservoir. Back of engine passenger side.
how do replace a power steering hose on a Chevy c-1500 pickup truck
on my 2001 3.8 litre the power steering pump is at the back of the engine under the alternater.
Add fluid at the power steering pump reservoir. Rear of engine passenger side.
You can get the pump for about $80
Top of engine on the passenger side.
passenger side under the alternator
check the fluid level in the power steering reservoir and make sure it's where it should be.
Just power sreering fluid. dextron 2 or 3