Regan Brown
Replacing the fuel door on a 2003 GMC Envoy can be a simple task if you have the right tools and follow the correct steps. This article will outline the process, including releasing the pressure from the fuel lines, removing the old fuel door, and installing the new one. By following these steps, you can ensure a safe and successful fuel door replacement.
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What You'll Learn
How to replace the fuel filter on a 2003 GMC Envoy
To replace the fuel filter on a 2003 GMC Envoy, you will need a Phillips screwdriver, pliers, a drip pan, and a jack and jack stands.
First, you need to release the pressure from the lines. Open the fuse box and find the fuel pump relay. Take it off. Start the engine and then take out the fuse. The engine will quit as it runs out of fuel. Shut off the key. Make sure you don't turn the key on again, as this will re-pressurise the system. Remove the cap and push in on the tabs. Place a drip pan underneath to drain the rest of the gas.
Now, push the tabs on either side of the hose and pull it free. Do the same with the other hose. Remove the Phillips screw at the top of the fuel filter. This will loosen the clamp. Pull the fuel filter up and out.
Take your new fuel filter and put it into the clamp. Replace the Phillips screw.
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How to release pressure from the fuel lines
To release pressure from the fuel lines of a 2003 GMC, you must first shut off the key. This will release any pressure in the fuel system. Make sure you don't turn the key on again, as this will re-pressurise the system. There will still be some fuel in the lines and a little bit of pressure, so you will need to remove the cap and push in on the tabs. Make sure you have a drip pan underneath to drain the rest of the gas. To release the pressure from the lines, open the fuse box and find your fuel pump relay. Take this off.
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How to remove the fuel door
To remove the fuel door of a 2003 GMC, you will need a 1/4" drill bit. Open the original fuel door and drill out the two rivets on the left side (one above and one below the door hinge). Once the rivets are gone, the fuel door will slide right out. Remove the rubber fuel door stops by gently twisting and pulling. Loosen the plastic shroud by removing the two screws and plastic clip and move it out of the way. This will allow room to tighten the nuts on the adapter.
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How to loosen the plastic shroud
To loosen the plastic shroud, you will need to remove the two screws and the plastic clip that are holding it in place. First, use a 1/4" drill bit to drill out the two rivets on the left side of the original fuel door (one above and one below the door hinge). Once the rivets are gone, the fuel door will slide right out. Gently twist and pull to remove the rubber fuel door stops. Then, you can remove the two screws and the plastic clip holding the plastic shroud in place. This will give you the room needed to tighten the nuts on the adapter.
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How to remove the fuel pump relay
To remove the fuel pump relay on a 2003 GMC, first, open the fuse box. You can find the fuel pump relay by referring to the diagram on the fuse box cover. Once you've located it, remove the fuel pump relay from the fuse box, paying attention to how it comes out so that you can put the new one in the same way.
If you need to release the pressure from the lines, you can do so by opening the fuse box and finding the fuel pump relay. Take it off.
To replace the fuel pump relay, first reconnect the ground cable back onto the battery's negative post. Then, install the new relay into the fuse box the same way the old one was removed. Put the fuse box cover back on, snapping it into place. If you had to remove screws or bolts from the cover, be sure to install them, but do not over-tighten them. Finally, remove the fuel cap from the fuel tank and put it back on to ensure the fuel system fully pressurises properly as the fuel pump activates.
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Frequently asked questions
You will need a Phillips screwdriver, pliers, a drip pan, and a jack and jack stands. First, release the pressure from the lines by opening the fuse box and removing the fuel pump relay. Next, push the tabs on either side of the hose and pull it free. Remove the Phillips screw at the top of the fuel filter and pull the fuel filter up and out. Put your new fuel filter into the clamp and replace the Phillips screw.
Open the fuse box and find the fuel pump relay. Remove it.
You will need a Phillips screwdriver, pliers, a drip pan, and a jack and jack stands.
Push the tabs on either side of the hose and pull it free. Then, remove the Phillips screw at the top of the fuel filter and pull the fuel filter up and out.
Put the new fuel filter into the clamp and replace the Phillips screw.
