Buddy, i got a split pcv hose and your not going to like this... but the Ford boys put the dang thing behind the manifold!! You got to take the manifold Off to get to the hose and valve.
It is located at the point where the upper radiator hose connects to the engine.
In the top radiator hose fitting opposite the radiator, on the engine.
The temperature sensor on a Ford Focus is located on top of the engine, near the upper radiator hose. It sends a constant signal to the vehicle's computer about its temperature.
Should be located in a removable housing at the engine end of the upper radiator hose
The low side service port is on the suction side (larger hose) and the high side service port is on the discharge hose (smaller hose)......
On the opposite end of the top radiator hose, away from the radiator, in the inlet fitting.
Which one?
Follow the top radiator hose from the Radiator to the engine. The thermostat is locataed under the housing that bolts onto the engine
Low pressure port located on the larger hose from the compressor I think most trying to add know to use the low side but was looking for where it is located
You have to remove the Intake
To remove a stubborn clamp on a collapsed PCV hose on a 2000 Ford Focus ZTS, cut the hose lengthwise, being careful to get part of the cut under the clamp. Then replace with a new hose and clamp.
Check out this link. http://autoparts.cardomain.com/auto-part/129552-ford-focus-dayco-dy72079-bypass-hose We have the same problem yesterday with our 2001.