2017 CHEVROLET Sonic LUJ (1.4L Turbo I4)/LUV (1.8L I4) (KL3)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Turbocharger wastegate rattling (1.4L turbo)
• Ignition coil failure
• Water pump leakage

First checks

• Confirm engine code to verify turbo/non-turbo
• Inspect timing chain tensioner and guides
• Check for intake manifold carbon buildup on 1.4L turbo

Before replacing parts

• Save fault codes and freeze-frame data before clearing anything.
• Check engine oil, coolant and transmission fluid using the correct temperature and service procedure.
• Verify power, ground, connectors, hoses, leaks and live data before replacing expensive parts.

Important notes

• Global availability varies; 1.4L turbo dominant in North America, 1.8L more common in South America and Asia.
• Discontinued in North America after 2019.