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.
Resources for the Repair and Maintenance of your 1998 Chevrolet G Series Van (G20)
1998 Chevrolet G Series Van (G20)
1998 Chevrolet G Series Van (G20) Problems
A coolant leak may develop from the water pump. This can result in an engine overheating condition. A leaking water pump will require replacement.
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.
Our technicians recommend flushing the brake fluid every 60,000 miles. Brake fluid that is dirty may cause problems in the brake system.
Our technicians highly recommend that the transmission is serviced every 30,000 miles to avoid problems and maintain optimal operating order.
1998 Chevrolet G Series Van (G20) Recalls (Recent)
Summary: 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.Learn more »
1998 Chevrolet G Series Van (G20) Questions and Answers
how do i service the ac system