The fuel filler neck on passenger vehicles is a solid piece of formed tubular steel that joins the fuel filler inlet and the rubber fuel fill hose on the gas tank. The fuel filler neck is connected to the filler inlet with steel screws. A steel hose clamp tightens the rubber fuel fill hose to the fuel filler neck in order to prevent gasoline from leaking out. As time passes, the fuel filler neck can rust, creating leaks and necessitating its replacement. Replacement fuel filler necks are available from auto parts stores and automobile dealerships.
Things You'll Need
- Automotive jack
- Jack stands
- Wheel chocks
- Flat-head screwdriver
- 1/4-inch ratchet
- 1/4-inch socket set
- Fire extinguisher
- Replacement fuel filler neck
Turn off the engine, shift the vehicle's transmission into park or first gear (standard transmission) and engage the emergency brake.
Place wheel chocks under the front wheels and raise the rear of the vehicle using an automotive jack. Support the vehicle with jack stands.
Remove the gas cap from the fuel filler inlet. Crawl underneath the rear end of the vehicle and unscrew the hose clamp holding the rubber fuel hose to the fuel filler neck with a flat-head screwdriver. Remove the screws holding the fuel filler neck to the fuel filler inlet with a 1/4-inch ratchet and an appropriately sized socket. Grip the rubber fuel fill hose and twist the fuel filler neck back and forth while pulling it away from the fuel filler hose until the two pieces are separated.
Place the lower end of the new fuel filler neck inside the rubber fuel fill hose and reinstall the hose clamp. Align the upper end of the fuel filler neck with the fuel filler inlet, then reinstall the steel retaining screws. Replace the gas cap.
Raise the vehicle and remove the jack stands. Lower the vehicle to the ground, start the engine and check for leaks.
Tips & Warnings
- Always use extreme caution when working with gasoline. Keep a fire extinguisher nearby at all times.
How to Replace a Mustang Filler Pipe
The Ford Mustang fuel tank is located underneath the trunk. When you pour in gasoline, the fuel runs through a pipe from...
How to Replace the Gas Filler Hose on a 1994 Ford Ranger
The gas filler hose on a 1994 Ford Ranger is the rubber hose that runs from the gas door to the gas...
How to Change the Fuel Filter in a 2000 F-250 SuperDuty
Every truck needs regular maintenance to stay in good condition. One part of truck maintenance is to change the fuel filter about...
How to Replace the Filler Neck on a Ford Truck
A variety of leaks can come from the fuel system in your Ford truck. Cracked or loose hoses show obvious signs of...
How to Replace the Water Pump on a 1995 Toyota Camry
The water pump in your 1995 Toyota Camry is used to move coolant from the radiator to the engine. This helps prevent...
Method to Seal Cracks in a Fuel Gas Tank Filler Neck
Don't worry; it's not your fault. This kind of thing happens; fuel tanks crack. It's time to stop obsessing over the problem;...