What could be the reason my Chevy Cruze is experiencing a valve cover leak?

9430 views

7 answers

★ Top Answer

Timothy Vendlinski Feb 13, 2021

If you own a Chevrolet Cruze made between 2011 and 2016, chances are you may encounter issues with the 1.4 liter turbo engine's PCV check valve design. It's not a matter of if, but when it will impact your vehicle. I've observed this problem in every single Cruze with this engine. The three main components prone to premature failure are the PCV regulator diaphragm (or check valve) on the valve cover, the corrugated hose leading to the intake manifold, and the check valve within the intake manifold. You might also notice diagnostic trouble codes like P0171, P1101, and P2096, among others. If the gasket is leaking due to shrinkage, cracking, or deterioration, it shouldn't be too costly to fix. However, once the issue extends to the manifold, repairs could get quite expensive.

More answers

Hattie C. Mar 17, 2023

Yeah, I've had to swap out my valve cover three times in the last half year. It's a manual turbo with six gears. I'm starting to think I got a bad deal. Not sure why it keeps happening.
Gavin S. May 15, 2020

A faulty valve cover gasket can lead to oil leaking. You might see oil puddles under the car or on various engine parts. You could even catch a whiff of something burning while you're out on the road. These gaskets wear out with age and will require replacement.
Pat cannon Feb 20, 2023

It sounds like your PCV valve in the manifold might be the problem. If this valve stops working, it can lead to excessive pressure in the engine block, resulting in leaks from the valve/cam cover, front seal, PCV vacuum regulator on the cam cover, as well as unusual noises and various other problems. You can get a repair kit at cruzekits.com to address these issues.
Vonnie T. Feb 17, 2023

Have you ever encountered issues with tightening the valve cover bolts located near the front of the engine?
Patrick Langa Dec 26, 2023

I just realized something - those parts come with a gasket. The issue is that they're not sitting properly in the valve cover when you install them, leading to leaks. The bolts you use can also sometimes cause leaks. To fix this, try not using the provided gasket and instead use a good sealant from Pep Boys or another automotive store. Apply the sealant all around the valve cover and see if that helps. Let me know how it goes, please.
Fred N. May 17, 2023

Perhaps, with over a hundred years of experience in manufacturing cars, the main focus now is on designing a product that does not fail.

Buying a Used car?
Check it by Epicvin