The PCV valve on a 1999 Cadillac Catera is located on the top of the engine, just behind the throttle body. It is a small, black plastic valve with two hoses connected to it. One hose goes to the intake manifold, and the other hose goes to the crankcase.
Replacing the PCV Valve
To replace the PCV valve, you will need a flat-head screwdriver and a new PCV valve.
1. Use the flat-head screwdriver to pry off the old PCV valve. Be careful not to damage the valve cover.
2. Screw the new PCV valve into place hand-tight.
3. Use the flat-head screwdriver to tighten the PCV valve until it is snug.
That's it! You have now successfully replaced the PCV valve on your 1999 Cadillac Catera.
