Mercury Cougar
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How do you replace a pcv vavle for a 1989 cougar?


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Wiki User
2015-07-15 21:13:18
2015-07-15 21:13:18

pull the pcv valve out of the vavle cover grommet, pull the hose off of it, put a new one in, put the hose back on, yay!!


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The pcv vavle is built in through the valve cover, so not an actual pcv vavle you would see on an average car, if it starts going bad your idle is going to go haywire, an occasional loud squealing, you have to replace the valve cover, which is 136.00. (PCV-Positive Crankcase Venalation

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on the valve cover as your faceing the car you will see a hose on the left side of the vavle cover. This hose goes to the intake plentum. the hose on the valve cover end goes to a connection that has a 19 mm nut screwed into the valve cover.loosen this nut remove the plastic cover and look in vavle cover. you will see the pcv vavle take a pair of needle nose and pull old pcv vavle out and replace.

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It uses an orifice in the top rear of the vavle cover not a PCV vavle.

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The PCV vavle is located in the rear valve cover just behind the throttle body

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