1GTCS1447X8513347

The 1999 GMC Sonoma is a compact pickup truck with a 2.2L in-line 4-cylinder engine, offering reliable performance with its Multipoint Fuel Injection (MPFI) system. Built by General Motors in Shreveport, Louisiana, this 4x2 drive truck features a two-door configuration and falls into the Class 1C weight category. Ideal for light-duty tasks, the Sonoma combines practicality with the trusted engineering of GMC.

Decoded VIN:

Make

GMC

Manufacturer Name

GENERAL MOTORS LLC

Model

Sonoma

Model Year

1999

Plant City

SHREVEPORT

Series

1500 (1/2 Ton)

Vehicle Type

TRUCK

Plant Country

UNITED STATES (USA)

Plant Company Name

GM Truck Group

Plant State

LOUISIANA

Series2

Small Conventional Cab

Body Class

Pickup

Doors

Gross Vehicle Weight Rating From

Class 1C: 4,001 - 5,000 lb (1,814 - 2,268 kg)

Drive Type

4x2

Brake System Type

Hydraulic

Engine Number of Cylinders

Displacement (CC)

2200.0

Displacement (CI)

133.6

Displacement (L)

2.2

Engine Model

LN2

Fuel Type - Primary

Gasoline

Engine Configuration

In-Line

Fuel Delivery / Fuel Injection Type

Multipoint Fuel Injection (MPFI)

Engine Manufacturer

WRN

Most common problems:

Brake fluid leaks

Hydraulic brake systems can develop leaks in the brake lines, calipers, or wheel cylinders, leading to reduced braking performance.

Worn brake pads or shoes

Over time, the brake pads or shoes wear down and need to be replaced to maintain effective braking.

Air in brake lines

Air can enter the hydraulic brake lines, causing a spongy brake pedal and reduced braking efficiency.

Brake master cylinder failure

The master cylinder can wear out or fail, leading to a loss of hydraulic pressure and brake effectiveness.

Head gasket issues

In-Line 4-cylinder engines, like the WRN LN2, can suffer from head gasket failures, leading to coolant leaks, overheating, and engine performance issues.

Timing chain/belt wear

The timing chain or belt in an In-Line 4-cylinder engine can wear out or fail, causing engine timing issues and potentially severe engine damage.

Oil leaks

Older engines, including the WRN LN2, can develop oil leaks from gaskets, seals, or the oil pan, leading to reduced oil levels and potential engine damage.

Fuel injector problems

The fuel injectors can become clogged or fail, causing poor engine performance, misfires, and reduced fuel efficiency.

Ignition system issues

Problems with spark plugs, ignition coils, or the distributor can cause misfires, rough idling, and difficulty starting the engine.

Cooling system failures

In-Line 4-cylinder engines can experience radiator, water pump, or thermostat failures, leading to overheating and potential engine damage.

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