2010 CHEVROLET Impala LFX/LY7 (GMX60)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Timing chain wear on LY7 engine
• Fuel pump failure in some early models
• Ignition coil failures

First checks

• Inspect timing chain noise
• Check for transmission slipping
• Examine coolant system for leaks

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

• The 2010 model is mainly for North American markets; some export variations exist but are limited.
• Engine options and features may vary slightly by market and production date within the year.