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09-11 have chronic pcv NIGHTMARES! mine had strong suction on finger on dipstick tube.i removed pcv valve from 05 donor+ turned diameter down+turned dia on short trans rubber hose for other end+cut about 1/2 INCH out of center of hard plastic hose+clamped the 2005 pcv valve in line + no more dipstick tube suction+hopefully oil consumption Will drop!STAY TUNED! I DON'T KNOW how to post pics sorry
The crankcase is supposed to have a vacuum on it it's not vented like an 08 and below as there is a vacuum regulator in the valve cover that keeps a vacuum in the crankcase and vented post throttle plate vacuum side of engine if you add a vent into crankcase it will be a large direct vacuum leak into crankcase and motor when the regulator goes out that's a large vacuum leak into motor it gets air from under the coil cover towards the back and towards the left a little the 2 small holes just above the rounded projection and when it goes out you hear a sucking sound or just before mine totally failed rythematic sucking sound accompanied with an increase in idle speed and if you put a valve in the line to the throttle body and there no more suction you may pressurize the crankcase and that possible to pop out a seal or other problems
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