One problem related to crankcase (pcv) has been reported for the 2023 Chevrolet Silverado 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2023 Chevrolet Silverado 1500 based on all problems reported for the 2023 Silverado 1500.
The pcv system plugs up in below zero weather casing the main rear engine seal to blow and leak. Currently waiting for GMC to manufacture the seal as it’s been back ordered due to so many engines needing this part. Estimate is 2 months or more wait. A loud ‘pop’ was heard the day before leaking. It sounded like an object hit under the truck. Oil drops were found the next day and dealership found the leak. Gateway in fargo, nd is the mechanic and GMC is paying for repairs. If we were to of driven for a prolonged time, the leak could have poured most of all of the oil out of the blown seal and ruined the engine. There were no warning signs. The oil pressure seemed unstable the immediate days afterwards before being looked at. It was going down and coming back up after warming. The oil began leaking faster and in larger amounts as weather warmed above freezing.