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This is for the 2.2L OHV engine 1997 and earlier. According to Haynes, the 1998 & later 2.2L OHV engines "have an oil/air seperator inside the valve rocker arm cover that requires no maintenance. 2.3L and 2.4L OHC engines are equipped with an oil/air seperator that is attached to the side of the block above the oil filter." As you are standing in front of the car facing the engine, if you look down at the top of the engine it is in the back lefthand corner of the valve cover. You will see a weird looking 1-1 1/4 inch star shaped nut on a round thing that sort of slopes up out of and toward the back of the engine & has about a 4" tube sticking out of it connecting to the fuel injector? assembly. If it is on too tight to loosen with by hand use a channel locks pliers to loosen it. Then pull the tube out & the pcv valve will be inserted into the end of the tube. Simply replace & hand tighten the nut. If you have the Haynes repair manual, the instructions are on page 1-18 with pictures on page 1-19
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Where is the PCV valve located on a 2.2 1998 Pontiac Sunfire?
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