2010 CADILLAC CTS LLT/LFW (GMX271)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Timing chain tensioner wear (3.0L and 3.6L engines)
• Water pump leaks
• Oil consumption on 3.6L direct injection engine under heavy load

First checks

• Inspect timing chain and guides for noise
• Check coolant system and thermostat operation
• Verify proper operation of direct injection components

Avant de remplacer des pièces

• 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

• Market variations exist: 3.6L LLT used mainly in North America; 2.8L LFW available in select export markets.
• Oil capacity includes filter change and is approximate; consult local manuals for exact specs.