stabilitrac warning

Asked by GuruLMZ3T Apr 29, 2019 at 12:40 PM about the 2013 Chevrolet Cruze LT Turbo Sedan FWD

Question type: Maintenance & Repair

I had warning for stabilitrac, and car was
jerky in acceleration. Most videos said valve
cover gasket leak... there was a crack in
valve cover so i replaced it.. same issue
comming up. Frustrated bad. Can any soul
please offer me any help please please

1 Answer
30

GuruS95L8 answered 5 years ago

The PCV vacuum regulator in the valve cover is most likely failing. There is a one way (check) valve in the intake manifold that fails and causes the ruptured vacuum regulator. The root cause of the problem (the intake manifold) needs to be addressed or the valve covers will keep failing. Unfortunately there's no way to repair the valve in the manifold and the manifold needs to be replaced. Even more unfortunate, GM has never redesigned the intake with the cheap check valve. Replacing the intake along with a new valve cover will buy you some time.

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