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Chevrolet G Series Van (G30) Repair and Maintenance

A guide to problems, costs, maintenance and repair for your Chevrolet G Series Van (G30)

Chevrolet G Series Van (G30) Problems

The intake manifold gasket may develop and external engine oil or coolant leak. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. Running the engine with a coolant/oil mix may result in engine damage. Replacing the intake manifold gasket should correct this issue.

The fuel pump may fail causing the engine to stall and not restart. Our technicians recommend replacing the fuel filter every 30,000 miles to help prevent undue strain on the fuel pump.

A coolant leak may develop from the water pump. This can result in an engine overheating condition. A leaking water pump will require replacement.

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Chevrolet G Series Van (G30) Questions

I have changed the temperature sensor and at the throttle position sensor. I have also replaced the thermostat with another 195° thermostat. I recently have changed the spark plugs and the distributor cap and condenser plus new wires. I have checked the hoses with starting fluid to check for leak...

My engine sputtered just a little then it started bogging down on me. It would shift through 3 gears but is pulling very hard now won't move at all.

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Chevrolet G Series Van (G30) Recalls

VEHICLE DESCRIPTION: LIGHT DUTY PICKUP TRUCKS AND MULTI-PURPOSE PASSENGER VEHICLES. ONE OR BOTH FRONT BRAKE ROTOR/HUBS WERE BUILT WITH AN OUT-OF-SPECIFICATION GRAY IRON THAT CAN FAIL DURING THE LIFE OF THE VEHICLE.VEHICLE DESCRIPTION: G VANS EQUIPPED WITH 6.5L TURBO-CHARGED DIESEL ENGINES. THE FRONT LEFT-HAND BRAKE PIPE CAN BE CONTACTED BY THE LOWER ENGINE OIL COOLER HOSE CAUSING A HOLE TO BE WORN IN THE BRAKE PIPE.WATER INTRUSION INTO THE KICK PANEL AREAS IN FRONT OF BOTH THE DRIVER AND PASSENGER DOORS CAN CAUSE A CORROSION PATH BETWEEN THE BATTERY FEED AND THE ELECTRICAL GROUND.

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Chevrolet G Series Van (G30) Reviews

mine has 170,000 miles on it and we are having trouble with the engine.

I own a G30 Extended Van with HD emissions. It runs great and have had little problems with it. The biggest problem is Rust. Though the main body from about 1 foot up is in great shape the bottom rockers and panels are rusted out. I am in the process of replacement. The 350 HD engine is simple to work on and has plenty of power for a big horse like the one ton extended. A 7.4 would be even bett...

This van is a workhorse. I bought it used with 115000 miles on it blowing a little smoke. We put a lightly used engine in it and I have nearly 180000 miles on the body, with around 70000 on the motor. It has never given me a question in five years. The body is a little rusted (lower panels), the wheels have needed ball joints, tie-rods, and other stuff. Front end is loose. Minor electrical...

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