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The 2006 HUMMER H2 is a robust Sport Utility Vehicle (SUV) with a V-shaped 6.0L V8 engine, delivering power through a 4WD system. Manufactured by General Motors in Mishawaka, Indiana, this multipurpose passenger vehicle features a hydraulic brake system and multipoint fuel injection. Designed for heavy-duty performance, it falls under the Class 2G weight rating, making it a powerful and capable option for both on-road and off-road adventures.

Decoded VIN:

Make

HUMMER

Manufacturer Name

GENERAL MOTORS LLC

Model

Model Year

2006

Plant City

MISHAWAKA

Series

3/4 Ton

Vehicle Type

MULTIPURPOSE PASSENGER VEHICLE (MPV)

Plant Country

UNITED STATES (USA)

Plant Company Name

AM General

Plant State

INDIANA

Body Class

Sport Utility Vehicle (SUV)/Multi-Purpose Vehicle (MPV)

Doors

Gross Vehicle Weight Rating From

Class 2G: 8,001 - 9,000 lb (3,629 - 4,082 kg)

Drive Type

4WD/4-Wheel Drive/4x4

Brake System Type

Hydraulic

Engine Number of Cylinders

Displacement (CC)

6000

Displacement (CI)

366.1424645683

Displacement (L)

Engine Model

LQ4

Fuel Type - Primary

Gasoline

Engine Configuration

V-Shaped

Fuel Delivery / Fuel Injection Type

Multipoint Fuel Injection (MPFI)

Other Engine Info

MFI, Iron

Engine Manufacturer

Most common problems:

Brake fluid leaks

Hydraulic brake systems can suffer from leaks in the lines or connectors, leading to reduced braking efficiency or brake failure.

Brake pedal sponginess

Air trapped in the hydraulic lines can cause the brake pedal to feel spongy, reducing braking power and responsiveness.

Overheating

The V-shaped LQ4 engine can experience overheating issues due to a malfunctioning thermostat, clogged radiator, or failing water pump.

Oil consumption

The GM LQ4 engine is known for higher oil consumption, which can be due to worn piston rings, valve seals, or PCV system issues.

Fuel injector problems

Multiport Fuel Injection (MFI) systems can develop clogged or leaking fuel injectors, leading to poor engine performance or misfires.

Iron block corrosion

The iron block of the LQ4 engine can suffer from internal corrosion, especially if the coolant is not regularly changed or if the wrong type of coolant is used.

Ignition coil failure

The V8 engine may experience ignition coil failures, leading to misfires, rough idling, and decreased engine performance.

Transmission issues

The 2006 HUMMER H2 is known to have transmission problems such as slipping, hard shifts, or failure, often related to the 4L65E transmission used in conjunction with the LQ4 engine.

Suspension wear

The heavy weight of the HUMMER H2 can lead to accelerated wear on suspension components such as bushings, ball joints, and shock absorbers.

Electrical problems

The 2006 HUMMER H2 often faces electrical issues, including faulty wiring, failing alternators, and battery drain problems.

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