Where is my PCV valve?

[Niskai]

Ok, I don't even know if I have this valve, but I'm trying to alleviate a rough idling problem, and I know that replacing this valve usually helps - but I can't seem to find mine. Any ideas?

The vehicle is a '93 Ford Escort LX w/ 1.9l

[dougand3]

PCV valve is just toward the bumper from the thermostat housing and coil pack, about 4-6" from back of radiator fan. It's ~2" tall, 3/4" diameter. It's at the end of a hard tube that goes to the intake. Pull it out and shake it...does it rattle? If so, not your problem. Spray some carb cleaner in it and shake it around, then put back.

Lotsa things cause rough idle...dirty air filter, vacuum leak, IAC gunked up, Throttle body gunked up, fouled plugs, coil pack failure, low fuel pressure, plugged injectors, etc.

[Niskai]

Thank You!

[kerker]

I thought that tube coming out there was the EGR valve. WHen you pull out that valve you can smell exhaust and feel the pulses of exhaust as they come out. I actually plugged that one up and, maybe it was just my imagination, feels like I have like 2 more horsepower. WHOA!!!!!!

[mightymoose_22]

The EGR is on the back side of the intake manifold near the throttle body... follow the long metal tube from the exhaust manifold/cat converter around the back side of the engine to find the EGR.