2010 CHEVROLET Cobalt LL8/LNF (GMX200)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Timing chain noise on LL8 engine
• Water pump failure
• Throttle body issues on LNF

First checks

• Inspect timing chain and guides
• Check coolant system hoses and thermostat
• Verify condition of supercharger belt on LNF

Antes de cambiar piezas

• 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 Chevrolet Cobalt was sold primarily in the North American market; other global markets sold different models under the Chevrolet brand during this time.
• SS trim used the supercharged LNF 2.0L engine with unique service items compared to the base 2.2L LL8.