on 99 models with 1.8 liters on top of engine in center of valve cover
check pcv valve
On my 1997 Protege a hose runs from the valve cover to the air intake assembly. Where the hose connects to the valve cover is the PCV valve.
Replace the PCV Valve.
it should be at top left corner of valve cover go to auto parts store for manual about $15.
Where is the PCV Valve on a Mazda B2300 2003
On a 1999 Mazda B3000, the PCV valve is in one of two places, depending on the engine. On SOHC 4-cylinder engines, the PCV valve is mounted on the oil separator on the left side of the engine. On DOHC 4-cylinder engines, the valve is behind the coolant bypass hose..
The PCV valve on a Mazda 6 V6 is located on the valve cover near the back of the engine. The PCV valve is usually a plastic or metal part that looks like a small tube sticking up out of the valve cover.
The PCV valve is located in the valve cover
Its called breather hose. It will cost you less than $ 10.00.
The PCV valve is found in the valve cover on the passenger side.
The PCV valve on a 1999 Astro should be located on top of the valve cover. It plugs in and can be easily replaced.
The PCV valve for a 1999 Regal 3.8 is located on the top of the valve cover. The valve pulls out to replace it.