It took me a while to find mine. It's been a while since I changed mine, and I tried to find the exact location again, but I could not see it. It is on the passenger side of the motor, close to where the water line to the heater comes off by the thermostat, and if I rememeber correctly, it's under the intake manifold. If I remember correctly, it's not directly on the motor, but off of a pipe, but I'm not sure. Sorry I couldn't help you more.
On a 1987 Nissan Hardbody Pickup, the PCV valve is located between the alternator and the oil filter. The valve can be seen when the oil filter has been removed.
On The passenger side of the motor between the Firewall and the Throttle body
Under the truck on the passager sideof the truck. You will see a rubber hose that's connected to it.
where is the pcv valve located 1994 nissan pick up 4wd 2.4l
below the carb. on the driver side
It is right behind the altenator. You can barley see it but it's there, you probaly have to feel for it.
where is the pcv valve located on a 2003 Nissan sentra
where is PVC valve located on 2002 Nissan sentra
pcv valve on nissan altima 2005
The 2005 Nissan air conditioning compressor expansion valve is located on the bottom of the compressor. The expansion valve should be labeled as such.
In the ac box
You can find the PCV valve for your 1987 Nissan on top of the engine. The PCV valve will be near the air filter housing.