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The 1985 Chevrolet Blazer is a rugged 2-door SUV with a powerful 5.7L V8 engine manufactured by General Motors. Featuring 4-wheel drive and a hydraulic brake system, this classic Blazer was built in Kansas City, Michigan at the Flint Truck Assembly plant. Ideal for off-road adventures, it belongs to the 1/2 Ton Nominal series.

Decoded VIN:

Make

CHEVROLET

Manufacturer Name

GENERAL MOTORS LLC

Model

Blazer

Model Year

1985

Plant City

KANSAS CITY

Series

1/2 Ton Nominal

Vehicle Type

PASSENGER CAR

Plant Country

UNITED STATES (USA)

Plant Company Name

Flint Truck Assembly

Plant State

MICHIGAN

Series2

Conventional Cab

Body Class

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

Doors

Gross Vehicle Weight Rating From

Class 2E: 6,001 - 7,000 lb (2,722 - 3,175 kg)

Drive Type

4WD/4-Wheel Drive/4x4

Brake System Type

Hydraulic

Engine Number of Cylinders

Displacement (CC)

5700.0

Displacement (CI)

347.83534133997

Displacement (L)

5.7

Engine Model

4BBL

Fuel Type - Primary

Gasoline

Engine Configuration

V-Shaped

Engine Manufacturer

Chevrolet

Most common problems:

Brake fluid leaks

Hydraulic brake systems can develop leaks in the brake lines, master cylinder, or wheel cylinders, leading to reduced braking efficiency.

Brake fade

Prolonged braking can cause the brake components to overheat, reducing their ability to generate friction and increasing stopping distances.

Worn brake pads and rotors

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

Vacuum booster failure

The brake booster, which uses engine vacuum to assist with braking force, can fail, making the brake pedal harder to press.

Engine overheating

V-shaped engines, such as the Chevrolet 4BBL, can experience cooling issues, leading to overheating, especially if the radiator, water pump, or thermostat is faulty.

Oil leaks

V8 engines like the one in the 1985 Chevrolet Blazer can develop oil leaks from valve cover gaskets, oil pan gaskets, or rear main seals.

Ignition system issues

Older V8 engines can suffer from problems with the distributor, spark plugs, or ignition coils, leading to misfires or poor engine performance.

Carburetor problems

The 4BBL carburetor can become clogged or improperly adjusted, causing issues with fuel delivery and engine performance.

Exhaust manifold cracks

The V-shaped engine's exhaust manifolds can develop cracks, leading to exhaust leaks and reduced engine efficiency.

Timing chain wear

Over time, the timing chain can stretch or wear, affecting engine timing and performance.

Fuel pump failure

Mechanical fuel pumps can fail, leading to fuel delivery issues and engine stalling.

Transmission issues

The transmission in the 1985 Chevrolet Blazer can develop problems such as slipping, hard shifts, or fluid leaks.

Drivetrain vibrations

Worn or damaged drivetrain components, such as universal joints or driveshafts, can cause vibrations while driving.

Suspension wear

The suspension components, including bushings, shocks, and control arms, can wear out, leading to poor handling and ride quality.

Rust and corrosion

Older vehicles like the 1985 Blazer are prone to rust and corrosion, especially in the frame, body panels, and undercarriage.

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