2G4WF551131212997

The 2003 Buick Regal GS is a refined sedan with a powerful 3.8L supercharged V6 engine (L67). It features a V-shaped engine configuration, sequential fuel injection, and overhead valve design. This passenger car, manufactured by General Motors in Oshawa, Ontario, Canada, offers safety with front airbags for both the driver and passenger.

Decoded VIN:

Make

BUICK

Manufacturer Name

GENERAL MOTORS LLC

Model

Regal

Model Year

2003

Plant City

OSHAWA #2

Trim

Vehicle Type

PASSENGER CAR

Plant Country

CANADA

Plant Company Name

GMNA

Plant State

ONTARIO

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)

3800.0

Displacement (CI)

231.89022755998

Displacement (L)

3.8

Engine Model

L67

Valve Train Design

Overhead Valve (OHV)

Engine Configuration

V-Shaped

Fuel Delivery / Fuel Injection Type

Sequential Fuel Injection (SFI)

Other Engine Info

Supercharged, Name Plate: Chevrolet, Buick

Seat Belt Type

Manual

Front Air Bag Locations

1st Row (Driver and Passenger)

Side Air Bag Locations

Driver Seat Only

Most common problems:

Oil leaks

Common in older vehicles, oil leaks can occur from gaskets, seals, and oil pans.

Supercharger issues

The supercharger can develop issues such as bearing wear, rotor damage, or belt problems, affecting performance.

Intake manifold gasket failure

The intake manifold gaskets can deteriorate over time, leading to coolant leaks and engine overheating.

Throttle body problems

Carbon buildup in the throttle body can lead to poor idle, stalling, and reduced performance.

Cooling system failures

Problems with the radiator, water pump, or thermostat can cause the engine to overheat.

Ignition system issues

Faulty spark plugs, ignition coils, or wiring can lead to misfires and poor engine performance.

Crankshaft position sensor failure

A failing sensor can cause intermittent stalling, no-start conditions, and poor engine performance.

Fuel injector problems

Dirty or clogged fuel injectors can lead to poor fuel economy, rough idle, and engine misfires.

Mass air flow sensor failure

A faulty MAF sensor can cause rough running, poor fuel economy, and engine stalling.

Transmission issues

While not directly an engine problem, the transmission can also suffer from issues affecting overall vehicle performance.

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