Right next to the oil cap
on a 1998 Pontiac gan am ,they do not have a pcv valve.
The PCV valve on a 2002 Pontiac Bonneville is located on the back of the in take manifold, however to get to the PCV valve you will need to remove the valve cover.
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.
Its in the front valve cover .
The PCV valve on q 2007 Torrent is made into the valve cover. It is not removable, the valve cover and PCV valve must be replaced together.
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The PCV is non-serviceable. It cannot be replaced.
on the valve cover
It's on the valve cover, look for a hose that goes to the carb and the pcv valve just pushes into the valve cover through a rubber grommet.If this is a Pontiac powered Trans Am the PCV valve will be in the valley pan, just under the intake. Should be in front of the carb.
The PCV valve is located under the MAP sensor on a 1990 Pontiac Grand Prix. The MAP sensor is in the upper plenum.
The PCV valve on a 1987 Toyota Corolla FX16 is located behind the alternator. It is under the intake manifold.
The 2001 Pontiac Grand Am 2.4 liter engine PCV valve is located on the firewall. The valve will be on the drivers side firewall in the engine compartment.