1979 Gmc Van problems

General information about Gmc-Van
Overview of popular issues
Analysis of common problems
Сomplaints list
Recalls list

The Chevrolet Van or Chevy Van (also known as the Chevrolet/GMC G-series vans and GMC Vandura) is a range of vans that was manufactured by General Motors from the 1964 to 1996 model years. Introduced as the successor for the rear-engine Corvair Corvan/Greenbrier, the model line also replaced the panel van configuration of the Chevrolet Suburban. The vehicle was sold both in passenger van and cargo van configurations as well as a cutaway van chassis that served as the basis for a variety of custom applications.

Produced across three generations (1964–66, 1967–70, and 1970–96), the model line was sold under a wide variety of model names under both the Chevrolet and GMC brands. The first two generations were forward control vehicles (with the engine placed between the seats); the third generation adopted a configuration placing the engine forward of the driver. The second and third generations shared powertrain commonality with the C/K pickup truck model line.

After the 1996 model year, GM retired the G-Series vans, replacing them with the GMT600-platform Chevrolet Express and GMC Savana.

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Common 1979 Gmc Van problems

Common Problems with the GMC Van 1979

Fuse Block Diagram

A common problem faced by GMC Van 1979 owners is the lack of a fuse block diagram, which makes troubleshooting electrical issues difficult. The fuse block diagram is crucial for identifying the correct fuses and relays for various electrical components, such as the oil pressure gauge, temperature gauge, voltage meter, and heater blower motor.

Ignition System Issues

Ignition system issues can lead to cranking but not starting, no spark, or no oil pressure. This problem can be caused by a faulty ignition control module (ICM) or a broken alternator bracket, which can cause the alternator to malfunction and prevent the engine from starting.

Fuel System Issues

Fuel system issues can lead to a lack of power to the fuel injectors, which can prevent the engine from starting. This problem can be caused by a faulty fuel pump, fuel injector control module (FICM), or a broken fuel injector wiring harness.

Electrical System Issues

Electrical system issues can lead to problems with the lights, console, and other electrical components. This problem can be caused by a faulty ignition coil, distributor cap, rotor, or spark plugs.

Starter Motor Issues

Starter motor issues can lead to problems with starting the engine. This problem can be caused by a faulty starter motor, solenoid, or wiring.

Engine Performance Issues

Engine performance issues can lead to problems with acceleration, fuel efficiency, and overall performance. This problem can be caused by a faulty mass air flow (MAF) sensor, throttle position sensor (TPS), or oxygen sensor.

Transmission Issues

Transmission issues can lead to problems with shifting, acceleration, and overall performance. This problem can be caused by a faulty transmission control module (TCM), solenoid, or wiring.

Braking System Issues

Braking system issues can lead to problems with stopping the vehicle. This problem can be caused by a faulty brake master cylinder, brake booster, or brake lines.

Suspension and Steering Issues

Suspension and steering issues can lead to problems with handling and stability. This problem can be caused by a faulty steering gearbox, tie rod ends, or suspension components.

Body and Chassis Issues

Body and chassis issues can lead to problems with rust and corrosion. This problem can be caused by exposure to salt, water, and other environmental factors.

In conclusion, the GMC Van 1979 is a reliable vehicle, but like any other vehicle, it can experience various issues. The most common problems include electrical system issues, ignition system issues, fuel system issues, starter motor issues, engine performance issues, transmission issues, braking system issues, suspension and steering issues, and body and chassis issues. These problems can be caused by a variety of factors, including wear and tear, exposure to environmental factors, and manufacturing defects. Regular maintenance and inspections can help prevent these issues and ensure the longevity of the vehicle.

1979 Gmc Van car problems categorized by type of issue

After analyzing all complaints sent to the NHTSA and researching popular Gmc Van problems, we found that the most common problems with these 2023 model year vehicles are:

Latches/locks/linkages problems

The graph below shows statistics for all 1979 Gmc Van vehicle components and the number of complaints received.

1979 Gmc Van complaints

The NHTSA has received 1 complaints about various vehicle components related to the 1979 Gmc Van.

1997-04-24

LATCHES/LOCKS/LINKAGES PROBLEM

Date Of Incident: 2024-11-24
Components: LATCHES/LOCKS/LINKAGES
Summary: DOOR LATCHES FAIL CAUSING DOORS TO OPEN WHILE VEHICLE IN MOTION.

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1979 Gmc Van recalls

The National Highway Traffic Safety Administration (NHTSA) has issued 1 recalls for different components of the 1979 Gmc Van.

2001-03-08

Manufacturer: GENERAL MOTORS CORP.
Components: ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
Summary: THIS IS NOT A SAFETY RECALL IN ACCORDANCE WITH THE SAFETY ACT. HOWEVER, IT IS DEEMED A SAFETY IMPROVEMENT CAMPAIGN BY THE AGENCY. VEHICLE DESCRIPTION: 1973-1979 LIGHT DUTY PICKUP TRUCKS AND VANS EQUIPPED WITH FLEXIBLE ENGINE COOLING FANS. THE FLEX FANS WERE INSTALLED ON VEHICLES EQUIPPED WITH A HEAVY COOLING SYSTEM AND WITHOUT AIR CONDITIONING. OVER TIME, CRACKS CAN DEVELOP IN THE FAN BLADE DUE TO FATIGUE, ENGINE MODIFICATIONS, OR VEHICLE CRASHES.
Consequence: THIS COULD RESULT IN SEPARATION OF THE FAN BLADES, INCREASING THE RISK OF INJURY OR DEATH.
Remedy: OWNERS ARE BEING ASKED TO INSPECT THE FAN ASSEMBLY TO CONFIRM IF IT IS EQUIPPED WITH THE FAN IN QUESTION. THE FAN ASSEMBLY HAS SEVEN FAN BLADES AND IS IDENTIFIED BY PART NUMBER 336032 ON EACH FAN BLADE. IF THE VEHICLE IS EQUIPPED WITH THE FLEXIBLE FAN ASSEMBLY, YOU SHOULD REPLACE THE FAN. A NEW FOUR-BLADE FIXED PITCH FAN (PART NUMBER 461317) WILL BE AVAILABLE WITHIN THE NEXT FEW WEEKS. GM RECOMMENDS THAT YOU NEVER STAND IN LINE WITH OR NEAR THE ENGINE COOLING FAN WHEN REVVING THE ENGINE. FOR THE OWNER'S PROTECTION, THE HOOD SHOULD BE CLOSED WHEN REVVING THE ENGINE. GM HAS DECIDED TO CONDUCT A SERVICE CAMPAIGN TO ADVISE OWNERS TO REPLACE THE FAN ASSEMBLY. OWNERS CAN CONTACT CHEVROLET AT 1-800-222-1020 OR GMC AT 1-800-462-8782, CONCERNING THIS PROGRAM.