At the risk of sounding sarcastic, I would say a mechanic. I am having to replace the one on my 96 Explorer and its a PITA. Everyone that said they would do it, backed out, and the ones that did come to do it didn't have the right tools, and the one they needed, we couldn't find. (9/16" half moon wrench)
With tools
Knowledge, tools and pizza
To change a shower valve, you will need to turn off the water supply, remove the old valve, install the new valve, and then test for leaks. It is important to follow the manufacturer's instructions and use the proper tools for the job.
on the 3100V6 you will find the PCV valve on the valve cover (front valve cover...closer to the radiator) on the drivers side of the cover, there is a hose attached to it. this will be on the OPPOSITE side of the pulleys, it is directly in the top on the valve cover. and slides out with no tools needed
If it is a 1.9L it takes a box or open end wrench in 10mm to take the 2 bolts off in the center of the valve cover.
You have to drop the transmission pan and then drop the valve body. Make sure you remember or have the manual to know what bolts go where when you drop the valve body. Then you push in the detent valve in the middle of the solenoids and the keeper for the valve will come out and the valve will come out also.
if your talking about the oil seals that go around the valve stems, you can do it with some specialized tools. But if your talking about removing the valves which include the stems then your going to have to pull the heads to get them out.
Get the 2004 Ford Etis. No special tools required but wiper arms and the cowl panel grill must be removed before. Also mind that a software update can be needed if you drive an early C-Max..
What kind of valve?
No tools required pull valve from valve cover, pull valve from vacuum line, install new valve.
on the front of the engine, to the right of the eng oil fill cap. the only hose there. pull out and replace in same direction. no tools needed.
The process for main water valve replacement involves shutting off the water supply, draining the pipes, removing the old valve, and installing the new valve. To do this effectively, it is important to have the necessary tools and materials, follow safety precautions, and possibly seek professional help if needed.