Shortening Dodge Ram Fuel Filler Lines: A Step-By-Step Guide

how to shorten dodge ram fuel filler lines

Dodge Ram owners have been complaining about issues with refueling their trucks since the 2015 model was released. The problem is caused by a defective fuel tank filler neck, which is too steeply angled and triggers the gas pump's automatic shutoff. This has led to a proposed class-action lawsuit against FCA US LLC, claiming that they have known about the defect since 2015 but have failed to issue a recall or address the problem. While some people have tried to fix the issue themselves, the only permanent solution seems to be replacing the entire gas tank, which can be costly. However, some people have found temporary solutions, such as angling the pump or pulling the nozzle out slightly.

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Replacing the fuel tank

Firstly, park the vehicle on a level surface, engage the parking brake, and ensure that the engine is turned off. Place wheel chocks around the tires to prevent accidental movement. It is important to work in a well-ventilated area when performing this task due to the presence of flammable fumes. Wear appropriate safety gear, including gloves and eye protection.

Next, locate the fuel tank and identify the various components connected to it, such as the fuel lines, filler tube, straps, and electrical connections. Mark the position of the straps with a marker to ensure proper alignment during reinstallation. Disconnect the negative battery terminal to prevent any accidental sparks. Place a suitable container under the fuel lines to catch any spilled fuel, then carefully disconnect the fuel lines from the tank using appropriate tools.

Now, carefully lower the fuel tank. This may require the assistance of another person. Slowly lower the tank in small increments, inspecting for any connected lines or wires. Ensure that no lines or wires are stretched or pulled during this process. Once the tank is lowered, carefully remove it from the vehicle. Place the new fuel tank in the vehicle, ensuring it is positioned correctly. Reattach the fuel lines, filler tube, and any other disconnected components, making sure all connections are secure and properly sealed.

Finally, carefully raise the new fuel tank into place, ensuring it is securely mounted and all straps are correctly positioned and tightened. Reattach the negative battery terminal. Inspect the fuel tank and all connected components for any signs of damage or leaks. Start the engine and check for any leaks or unusual noises. If no issues are detected, your Dodge Ram's fuel tank replacement is complete.

It is important to note that this is a general guide and that specific steps may vary depending on your Dodge Ram's model and year. Always refer to a qualified mechanic or the vehicle's repair manual for detailed instructions specific to your vehicle.

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Replacing the filler neck

To replace the filler neck, you will need to purchase a new filler neck that is not as steeply angled. The part number for the replacement filler neck is 68448220AA. Once you have the new filler neck, follow these steps:

  • Remove the gas tank: Lower the tank slowly, watching with a small, bright LED flashlight to ensure no lines or wires are pulled. Disconnect the diff press switch line from both ends if necessary.
  • Remove the old filler neck: Disconnect the filler neck from the fuel tank and the gas pump nozzle.
  • Install the new filler neck: Connect the new filler neck to the fuel tank and the gas pump nozzle, ensuring that all connections are secure.
  • Reinstall the gas tank: Raise the new tank into place, reconnecting the diff press switch line if it was disconnected.

It is important to note that working with fuel systems can be dangerous, so if you are uncomfortable or unfamiliar with the process, it is recommended to seek professional assistance. Additionally, make sure to follow all safety precautions, including working in a well-ventilated area and avoiding open flames or sparks.

By replacing the filler neck with a less steeply angled version, you should be able to resolve the fueling issues that have been commonly reported with the Dodge Ram. This modification will allow for a smoother and more efficient refueling process, reducing the time and frustration associated with the original design.

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Replacing the charcoal canister

The charcoal canister, also known as the fuel evaporative canister, is an emission control device that traps vapors from fuel evaporation and sends them to the fuel tank for later use. The EVAP system uses the charcoal canister to store fuel vapors that escape the gas tank through a tube. The canister empties by engine vacuum sucking the vapors out to be burned as fuel. This can only be done when the vent valve and purge valve are opened simultaneously. When the vent valve and purge valve are closed, the canister will store vapors until the vents are opened. This allows environmentally harmful fuel vapors from entering the atmosphere and increases fuel mileage over a tank of fuel.

The charcoal canister may fill with fuel when the tank is topped off, causing system failure and degradation of the canister. This is a common issue in Dodge Ram trucks, with many users reporting problems with refueling their vehicles. In some cases, the charcoal canister may need to be replaced. The average cost for a Dodge Ram 1500 Fuel Evaporative Canister Replacement is between $312 and $385 but can vary depending on the vehicle.

To replace the charcoal canister, first disconnect the battery and take proper precautions against fire hazards. Identify the charcoal canister, which is typically located near the fuel tank and connected by a vent line. Remove the old canister by disconnecting the vent line and any other attachments. Install the new charcoal canister by connecting it to the vent line and securing it in place. Ensure that all connections are tight to prevent leaks.

It is important to note that the EVAP system is complex, and repairing or replacing components can be challenging. It is recommended that this task be performed by an experienced DIYer or a professional technician to avoid further issues.

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Replacing the fuel pump

To replace the fuel pump on a Dodge Ram, you will need to access the pump by lowering the fuel tank. Here is a step-by-step guide:

  • Prepare the Vehicle: Park the vehicle on a level surface and engage the parking brake. Ensure you have all the necessary tools and safety equipment, including gloves and eye protection.
  • Drain the Fuel Tank: Place a suitable container under the fuel drain plug and carefully drain the fuel from the tank. This step is important for safety and to prevent fuel spillage.
  • Lower the Fuel Tank: Using the appropriate tools, remove the fuel tank straps and carefully lower the tank. This may require the assistance of another person. Be cautious of any lines or wires connected to the tank.
  • Disconnect the Fuel Pump: Once the tank is lowered, locate the fuel pump and disconnect the electrical connector. Also, take note of any fuel lines or hoses connected to the pump.
  • Remove the Old Fuel Pump: Carefully remove the old fuel pump from the tank. This may involve unscrewing or unbolting any mounting hardware. Be sure to keep track of all the components and their positions for reinstallation.
  • Install the New Fuel Pump: Obtain a new fuel pump that is compatible with your Dodge Ram's make and model. Install the new pump in the reverse order of removal, ensuring all connections are secure. Refer to the vehicle's repair manual or a trusted online resource for specific installation instructions.
  • Reinstall the Fuel Tank: Carefully raise the fuel tank back into position and secure it with the straps. Reconnect any disconnected lines or wires, ensuring they are routed correctly.
  • Refill the Fuel Tank: Using a funnel, carefully refill the fuel tank with the appropriate type and amount of fuel. Start the vehicle and check for any leaks or unusual noises.

Note: It is important to dispose of the drained fuel properly and in accordance with local regulations. Always exercise extreme caution when working with fuel systems to avoid injury or vehicle damage. Refer to your Dodge Ram's repair manual or consult a professional mechanic if you have any questions or concerns.

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Replacing the vent line

To replace the vent line of your Dodge Ram, you will need to follow these steps:

First, locate the vent line. It is the small line connected to the filler tube, which is located just behind the fender. Mark the stud the strap is on with a Sharpie to avoid confusion when reinstalling the tank. With the help of an assistant, slowly lower the tank, keeping an eye on the lines and wires to ensure none get pulled or tangled. Shine a small, bright LED flashlight on the tank to aid visibility.

Once the tank is lowered, carefully fish out the filler tube and vent line from the wheel well. Disconnect the vent line from the filler tube. You may also need to disconnect the diff press switch line, but this can be reconnected to the tank when you reinstall it. Next, remove the old vent line from the tank and set it aside, ensuring you have a suitable replacement part.

Install the new vent line onto the tank, taking care to avoid any tangles or obstructions. Securely connect the new vent line to the filler tube. Finally, carefully raise the tank back into position, ensuring it is securely fastened and all lines are correctly connected.

By following these steps, you can successfully replace the vent line on your Dodge Ram, addressing any fueling issues caused by a faulty or clogged vent line.

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