Location of PCV valve on a 2005 Pontiac Sunfire

https://www.autozone.com/repairguides/GM-Cavalier-Sunfire-1995-2000-Repair-Guide/ROUTINE-MAINTENANCE-AND-TUNE-UP/PCV-Valve/_/P-0900c1528003c9f7 .

Hope it helps.

It's not a PCV valve like back in the day . It's a fix orifice in the valve cover . Where the breather hose hooks to the valve cover . You would need to take the valve cover off an clean the orifice with carb clean or brake clean .

Crankcase Ventilation System Description
A crankcase ventilation system is used to consume crankcase vapors in the combustion process instead of venting them to atmosphere. Fresh air from the intake system is supplied to the crankcase, mixed with blow by gases and then passed through a calibrated orifice into the intake manifold.
The primary control is through the positive crankcase ventilation (PCV) orifice which meters the flow at a rate depending on inlet vacuum. The PCV orifice is an integral part of the camshaft cover. If abnormal operating conditions occur, the system is designed to allow excessive amounts of blow by gases to back flow through the crankcase vent into the intake system to be consumed by normal combustion.

hope it helps

There's no PCV valve on these engines. The crank ventilation is built into the valve cover.

It seals into a rubber grommet in the valve cover

Check and or replace your PCV valve. also make sure the oil level is not overfilled.and your airfilter is not dirty/plugged

No the pcv is on the intake manifold the hose that is on the valve cover is just a hose and nipple the PCV is on the intake

usually they are on the valve cover. buy a new one and look for the old one. check the tubes connected tfrom the engine to the air breather

the positive cranckase ventilation is going to be on the valve cover. usually has a rubber hose about 5/8 coning off it and running to the intake.