Question 1

PCV valve failure in the valve cover (1.4 Turbo)

Accepted Answer

The PCV diaphragm built into the valve cover of the 1.4 Turbo tears, causing a whistling noise, rough idle, lean codes, oil consumption and oil leaks. The fix is usually replacing the whole valve cover.

Question 2

Coolant leaks from the water outlet and thermostat housing (1.4 Turbo)

Accepted Answer

The 1.4 Turbo in the Cruze is known for coolant leaks from the plastic water outlet, thermostat housing and water pump, giving a sweet smell, coolant level low warnings and possible overheating. Repeated top-ups are a common sign.

Chevrolet CruzeCruze 1st Gen

Known issues and common problems

Chevrolet CruzeCruze 1st Gen

Known issues and common problems

PCV valve failure in the valve cover (1.4 Turbo)at 100000 km · 1 solutionsMedium

Coolant leaks from the water outlet and thermostat housing (1.4 Turbo)at 100000 km · 1 solutionsMedium