One problem related to crankcase (pcv) has been reported for the 2012 Chevrolet Silverado 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Chevrolet Silverado 1500 based on all problems reported for the 2012 Silverado 1500.
Took wife in city traffic uptown. . Pcv value got clogged causing oil to get on spark plugs and foul them out causing the intake manifold to have to be taken off and cleaned and all spark plugs and covers replaced. . Manifold gasket replaced. . Cost me almost $800 and there is only 56,000 miles on it! fortunate that I was able to only have to drive about 3 miles to dealership!.