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W04G05GV6B1099959
Vehicle Summary
The 2011 Buick Regal is a sleek sedan designed with a 2.0L turbocharged inline-4 engine, offering a dynamic driving experience. Manufactured by ADAM OPEL AG in Germany, this model features comprehensive safety with airbags in all rows and a direct TPMS. The CXL Turbo - 6XT series boasts a sophisticated notchback body type and flexible fuel capabilities. With advanced SIDI technology and dual overhead cam design, it ensures both performance and efficiency.
Complete Specifications
Common Issues for This Vehicle
Oil leaks
The LHU engine in the 2011 Buick Regal, being an aluminum block engine, can sometimes develop oil leaks at the valve cover gasket, oil pan gasket, or timing cover.
Turbocharger issues
The LHU engine is turbocharged, and problems such as turbo lag, reduced power, or failure can occur due to issues like oil contamination, wear, or insufficient lubrication.
Carbon buildup
Due to the SIDI (Spark Ignition Direct Injection) system, these engines are prone to carbon buildup on the intake valves, which can lead to rough idling, misfires, and reduced fuel efficiency.
Timing chain wear
Over time, the timing chain can stretch or wear out, leading to a noisy engine, poor performance, or even engine failure if not addressed.
Coolant leaks
The aluminum construction of the engine can make it susceptible to coolant leaks from places like the water pump, radiator, or hoses, which can lead to overheating.
Fuel injector problems
Direct injection systems can sometimes suffer from clogged or malfunctioning fuel injectors, leading to rough running, poor acceleration, and increased emissions.
High-pressure fuel pump failure
The high-pressure fuel pump necessary for direct injection can fail, leading to issues such as hard starting, stalling, or a complete loss of power.
Engine overheating
Due to potential issues with the cooling system (like a failing thermostat or water pump), the engine can overheat, leading to potential head gasket failure or warped cylinder heads.
Electrical problems
Sensors and electronic components, such as the camshaft position sensor or mass airflow sensor, can fail, leading to engine performance issues and check engine light warnings.
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