How to Change the Fuel Pump on a 1985 Chevrolet Camaro

The Chevrolet Camaro was built in response to the big success of the Ford Mustang. After seeing Ford sell more than 100,000 units of the Mustang in only six months, Chevrolet began designing a car to compete with it. The first Camaro was sold in 1967. Over the years the Camaro was redesigned and modified to include certain comforts and features. Later versions of the car, including the 1985 model, were equipped with a fuel pump that was located inside the fuel tank of the car. This fuel pump must be changed from time to time.

Tools Used: Socket set, Hammer, Ignition Key, Chisel, Hydraulic jacks, Wooden block, Wheel blocks, Funnel, Gas can, Needle nose pliers, Wrench

Change the Fuel Pump

Initial Preparation

Park your car on a level and solid surface. Engage the parking brake to avoid any tire movement while you are working. Put solid wheel blocks against the tires of the Camaro as well, to avoid the car rolling while you are changing the fuel pump.

Loosen the fuel tank cap on the car to relieve its fuel system pressure.

Remove the fuel pump fuse from the Camaro's fuse box. The fuse panel will be located to the bottom left of the driver's side steering wheel.

Remove all of the gasoline from the Camaro's fuel tank. The fuel tank has a drain plug on the bottom that you can twist and remove. Reinsert the plug after you are finished. Have a gas can with a funnel ready below to catch the falling gas. Be sure to keep towels available in case any gas leaks onto the ground.

Start your Camaro's engine. This will drain any possible remaining fuel in the gas tank. The engine will stop running on its own when there is no fuel left in the system.

Detach the Fuel Tank From the Car

Open the hood of the Camaro and disconnect the two cables running to the battery with pliers and a wrench. Disconnect the black negative cable first.

Lift the rear portion of the Camaro with hydraulic jacks or jack stands.

Find a wooden block or other object to set the Camaro's fuel tank on when you loosen the straps holding it to the car's frame. Without resting the tank on something you may overextend the fuel and electrical lines running from the top of the tank where the fuel filter is. Position the block so that the middle of the tank will rest on it when the tank is removed.

Remove the support straps that keep the gas tank attached to the car with a socket set. Set the support strap bolts nearby so that they are easily accessible when you reattach the fuel tank. Lower the fuel tank onto the wooden block or other object that you have prepared. Detach all of the fuel and electrical lines running from the top of the fuel filter inside the top of the fuel tank.

Lift the fuel tank from the wooden block or other object supporting it. Pull the fuel tank out from underneath the car. You will see the top of the fuel pump sticking out from the top of the tank.

Remove the Old Fuel Pump

Remove the locking ring that is holds the fuel pump to the top of the gas tank. Use a chisel and hammer to turn the ring counterclockwise. The chisel can be placed against a vertical tab sticking up from the locking ring. Tap on the chisel with the hammer lightly.

Locate the thin rubber black ring that sits under the locking ring. It may have fallen into the fuel tank after you removed the locking ring. This rubber ring keeps gas from leaking out of the fuel tank.

Lift the fuel pump directly up from the gas tank. Do this slowly so that parts from the fuel pump do not fall into the tank.

Insert the New Fuel Pump Into the Gas Tank

Put the new fuel pump into the top of the gas tank. Do not push it all the way down yet. Instead, leave a half-inch of space between the top of the fuel pump and the tank to reinsert the black rubber ring that keeps fuel from leaking out of the tank. The ring should sit in a groove that will allow it to sit directly under the locking ring once it is reattached.

Insert the black rubber ring below the top of the fuel pump. Then push the fuel pump completely down onto the gas tank.

Reattach the locking ring over the top of the fuel pump. Ensure that the ring is pushed down as far as it can go and then tighten it with the hammer and chisel in a clockwise turn.

Reattach the Fuel Tank

Push the fuel tank back under the car. Line it up so that the tank is directly below where it will be reattached to the Camaro's frame. Set the tank back onto the wooden block or other object that you previously rested the tank on.

Reattach the fuel and electrical lines to the fuel pump at the top of the gas tank. Raise the fuel tank into place and while holding the tank with one hand push the wooden block or other object away with your other hand to be able to get under the tank and reattach the straps.

Reattach the fuel tank retaining straps so that the tank remains fixed to the Camaro's frame.

Test the New Pump

Pour the fuel you had drained from the gas tank back into the car using your funnel.

Attach the battery cables to the car with a wrench and pliers.

Turn the car's ignition key one notch so that the battery is engaged. Leave the car's key turned in this position for approximately five to ten seconds then turn the key all the way to the left. Repeat this process several times to repressurize the car's fuel system.

Turn the car's engine all the way on. Look for any fuel leaks under the car.

Tips & Warnings

Have several heavy towels available to catch any possible fuel spill while performing these steps.

Always change the fuel pump in an area that has sufficient ventilation to avoid fires or inhalation hazards.

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