GM 1.4 Turbo (Chevy Cruze/Sonic) issues: 1) Excessive oil consumption from piston ring failure — some vehicles consumed 1 quart per 1000 miles. GM extended warranty coverage on some models. 2) Intake manifold gasket failure at 60-80k miles — gasket between head and intake manifold develops vacuum leak causing rough idle and P0171. 3) PCV valve clogging causing oil to enter intake. Check for applicable service campaigns. Intake manifold gasket replacement: $200-400.
GM 1.4 Turbo engine oil consumption and intake manifold leaks
GM small turbocharged engine using oil. Intake manifold gasket leaking. This fault code is stored when the engine control unit detects a specific fault condition. Common causes include sensor failures, wiring faults, and component wear. Always read additional fault codes before replacing parts — multiple codes together provide a clearer diagnosis. Clear the code after repair and test drive to confirm the fault does not return.
🔍 Symptoms
⚙️ Possible Causes
Onarım / Çözüm
Based on 76 driver confirmations
⚠️ Yanlış Teşhis mi?
No commonly reported misdiagnoses for this fault yet. If you have replaced a part that did not fix this 2011 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
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