PCV

Normal Engine Air Leak Whistle Noise From The PCV – 2019 Chevrolet Silverado & GMC Sierra 1500

by
2019 Chevrolet Silverado 1500

NHTSA ID Number: 10145477 Manufacturer Communication Number: PIP5587 Summary This Preliminary information communicates A vehicle may come into the dealer with a lean running concern and/or air leak noise from the PCV.The air rush or whistlingnoise is caused by the fixed orifice PCV.There is not a correction for this noiseand should be considered to be normal.   … Read more

Special Coverage Adjustment – Plugged PCV Orifice in Intake Manifold – 2010-2014 Buick Chevrolet GMC

by
2013 Buick LaCrosse

NHTSA ID Number: 10090101 Manufacturer Communication Number: 14882 Summary 14882 – Special Coverage. Certain vehicles equipped with a 2.4L engine (LAF, LEA or LUK) that have experienced high oil consumption may also experience a frozen and/or plugged PCV (positive crankcase ventilation) system during cold weather operation. This condition may increase crankcase pressure leading to a rear crankshaft … Read more