2GCGC39N2K1132674

The 1989 Chevrolet GMT-400 is a robust pickup truck featuring an extended cab and a powerful 7.4L V8 engine with throttle body fuel injection. Manufactured by General Motors in Oshawa, Ontario, this 1-ton nominal truck is designed for heavy-duty tasks with a gross vehicle weight rating of up to 9,000 lbs. It's a reliable 4x2 vehicle ideal for both work and play.

Decoded VIN:

Make

CHEVROLET

Manufacturer Name

GENERAL MOTORS LLC

Model

GMT-400

Model Year

1989

Plant City

OSHAWA TRUCK

Series

1 Ton Nominal

Vehicle Type

TRUCK

Plant Country

CANADA

Plant Company Name

NA-Canada - Truck

Plant State

ONTARIO

Series2

Conventional Cab

Body Class

Pickup

Gross Vehicle Weight Rating From

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

Cab Type

Extra/Super/Quad/Double/King/Extended

Drive Type

4x2

Brake System Type

Hydraulic

Engine Number of Cylinders

Displacement (CC)

7400.0

Displacement (CI)

451.57570630101

Displacement (L)

7.4

Fuel Type - Primary

Gasoline

Engine Configuration

V-Shaped

Fuel Delivery / Fuel Injection Type

Throttle Body Fuel Injection (TBI)

Engine Manufacturer

CPC

Most common problems:

Brake fluid leak

In a hydraulic brake system, any leaks in the brake lines, calipers, or master cylinder can lead to reduced braking performance or complete brake failure.

Brake fade

This can occur due to overheating of the brake components, often from heavy use or downhill braking, leading to temporary loss of braking power.

Brake pad wear

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

Master cylinder failure

The master cylinder is crucial for hydraulic pressure; any failure here can compromise the entire brake system.

Engine misfiring

A common issue with V-shaped engines, often due to problems with the ignition system, fuel injectors, or spark plugs.

Oil leaks

V-shaped engines are prone to oil leaks from the valve cover gaskets or oil pan gasket.

Cooling system problems

V8 engines generate a lot of heat, which can stress the cooling system, leading to issues like radiator leaks or thermostat failures.

Timing chain/belt issues

If not properly maintained, the timing chain or belt can wear out or break, leading to severe engine damage.

Fuel system issues

Older models like the 1989 GMT-400 may experience fuel pump or fuel filter failures.

Exhaust manifold leaks

The V8 configuration can lead to exhaust manifold gasket failures, causing exhaust leaks and potential engine performance issues.

Transmission problems

Although not engine-specific, older vehicles like the 1989 CHEVROLET GMT-400 can experience automatic transmission issues such as slipping or hard shifts.

Electrical problems

Aging wiring and connectors can lead to various electrical issues, affecting engine performance and reliability.

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