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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.

Decoded VIN:

Make

BUICK

Manufacturer Name

ADAM OPEL AG

Model

Regal

Model Year

2011

Plant City

RUESSELSHEIM

Series

CXL Turbo - 6XT

Vehicle Type

PASSENGER CAR

Plant Country

GERMANY

Plant Company Name

Opel

Note

Body Type: Notchback

Body Class

Sedan/Saloon

Doors

Windows

Gross Vehicle Weight Rating From

Class 1: 6,000 lb or less (2,722 kg or less)

Gross Vehicle Weight Rating To

Class 1: 6,000 lb or less (2,722 kg or less)

Engine Number of Cylinders

Displacement (CC)

2000

Displacement (CI)

122.0474881894

Displacement (L)

Engine Model

LHU

Fuel Type - Primary

Flexible Fuel Vehicle (FFV)

Valve Train Design

Dual Overhead Cam (DOHC)

Engine Configuration

In-Line

Other Engine Info

SIDI, ALUM

Turbo

Yes

Seat Belt Type

Manual

Other Restraint System Info

Airbags: Rear Seat Side (2nd row), Roof Side (all seating rows)

Front Air Bag Locations

1st Row (Driver and Passenger)

Side Air Bag Locations

All Rows

Tire Pressure Monitoring System (TPMS) Type

Direct

Most common problems:

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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