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The 1998 HUMMER H1 by AM GENERAL LLC is a robust multipurpose passenger vehicle featuring a powerful 6.5-liter V8 engine with turbocharging. With a gross vehicle weight rating of Class 3, this truck is designed to handle heavy-duty tasks. Manufactured in Mishawaka, Indiana, it sports an automatic transmission with four speeds and is equipped for left-hand drive. Its rugged design and capability make it an iconic choice for off-road enthusiasts and those needing serious towing and hauling power.

Decoded VIN:

Make

HUMMER

Manufacturer Name

AM GENERAL LLC

Model

Model Year

1998

Plant City

MISHAWAKA

Series

1 1/4 ton

Vehicle Type

MULTIPURPOSE PASSENGER VEHICLE (MPV)

Plant Country

UNITED STATES (USA)

Plant State

INDIANA

Body Class

Truck

Doors

Gross Vehicle Weight Rating From

Class 3: 10,001 - 14,000 lb (4,536 - 6,350 kg)

Steering Location

Left-Hand Drive (LHD)

Transmission Style

Automatic

Transmission Speeds

Engine Number of Cylinders

Displacement (CC)

6500.0

Displacement (CI)

396.65433661575

Displacement (L)

6.5

Fuel Type - Primary

Gasoline

Engine Configuration

V-Shaped

Turbo

Yes

Most common problems:

Oil leaks

V8 engines, especially in older models like the 1998 HUMMER H1, often develop oil leaks around the valve cover gaskets and oil pan gaskets.

Overheating

The V8 engine in the HUMMER H1 can be prone to overheating due to its large size and the vehicle’s heavy weight, which can strain the cooling system.

Fuel consumption

The 1998 HUMMER H1 with a V8 engine is known for its high fuel consumption, which can be a problem for owners looking for cost efficiency.

Ignition system issues

Spark plug and ignition coil failures are common in older V8 engines, leading to misfires and poor engine performance.

Timing chain wear

Over time, the timing chain in the V8 engine can wear out, leading to issues with engine timing and potentially severe engine damage if not addressed.

Exhaust manifold cracks

The exhaust manifolds on V8 engines can develop cracks due to the high temperatures they endure, leading to exhaust leaks and reduced engine performance.

Intake manifold gasket failure

The intake manifold gasket can deteriorate over time, causing coolant leaks and potential engine overheating.

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