engine light, scanning for codes like P0087 (Fuel Rail/System Pressure Too Low) can also point you in the right direction

Tools and Parts You Will Need

Attempting this job without the proper gear will lead to frustration. You are not just swapping a light bulb; you are dealing with a pressurized fuel system and a heavy fuel tank. Here is a breakdown of what you should have on hand before you start .

Essential Tools:

  • Floor Jack and Jack Stands (at least two): Never work under a vehicle supported only by a jack. The fuel tank is heavy, especially when full.
  • Fuel Line Disconnect Tools: These are specific to your Ram’s model year. Common sizes are 3/8" and 5/16". Using the wrong tool can damage the plastic quick-connect fittings.
  • Socket Set with Extensions: You will need a variety of sockets, including deep-well sockets for the tank strap bolts. A 10mm, 15mm, and 7mm socket are commonly needed .
  • Torx Bit Set: Many Rams use Torx bolts for the pump module lockring.
  • Pliers and Screwdrivers: A flat-blade screwdriver and a large pair of pliers are useful for hose clamps and the lock ring.
  • Brass Punch and Hammer: Use a brass punch and hammer to gently tap the lockring counter-clockwise to loosen it. Brass is non-sparking, which is a safety bonus .
  • Drain Pan: You will need at least a 5-gallon capacity pan to catch any spilled fuel.
  • Container for Fuel: A clean gas can or a transfer pump to drain the tank if it is full.

Required Parts:

  • New Fuel Pump Assembly: Do not buy just the pump motor. For the Dodge Ram, you almost always replace the entire sender assembly, which includes the pump, filter sock, fuel level sensor, and the housing. This ensures everything works together seamlessly .
  • New Lockring: The old lockring can corrode and is often damaged during removal. It is cheap insurance to buy a new one.
  • New O-Ring or Gasket: Most kits come with a new O-ring, but if yours does not, you need to get one. The seal is critical for preventing leaks.
  • Fuel Filter: While you are working on the system, it is a good idea to replace the fuel filter. A clogged filter can restrict fuel flow and cause symptoms similar to a bad pump .

Step 1: Safety First – Depressurize the Fuel System

Start with a cold engine. The first step is to relieve the pressure in the fuel system to avoid a dangerous spray of gasoline. Locate the fuel pump relay in the Power Distribution Center (PDC) under the hood. The lid of the PDC has a diagram to help you find it. Pull the relay out .

Next, start the engine and let it run until it stalls from lack of fuel. After it stalls, crank the engine for a few more seconds to ensure all pressure is bled off. Finally, disconnect the negative battery cable with a socket wrench to add an extra layer of safety . This step is non-negotiable. Failure to relieve pressure can result in fuel spray, which is a serious fire hazard .

Step 2: Draining and Lowering the Fuel Tank

This is the most physically demanding part of the job. If your tank is full or near full, you must drain it. The safest way is to use a transfer pump via the fuel filler neck. Alternatively, you can disconnect a fuel line at the engine bay, connect a hose, and run it into a gas can, then briefly re-connect the battery to cycle the pump (exercise extreme caution here) .

Once the tank is as empty as possible:

  1. Raise the rear of the truck and support it securely on jack stands. If you have a four-door Ram with a six-foot bed, you may need to remove the left rear wheel for better access .
  2. Disconnect the filler neck and vent hoses from the metal pipes on the fuel and EVAP lines by loosening their clamps with a flat-blade screwdriver .
  3. Disconnect the electrical connector and the fuel lines at the top of the tank. These are the main fuel supply line and the return line. Use your fuel line disconnect tools carefully to avoid damaging the fittings .
  4. Support the tank by raising a transmission jack or a floor jack underneath it. If you use a floor jack, place a block of wood on the jack head to protect the tank and distribute the weight .
  5. Remove the tank strap bolts using a socket wrench. The straps hold the tank in place .
  6. Slowly lower the jack, ensuring no hoses or wires are snagging. Once the tank is low enough, you can pull it out from under the truck.

Step 3: Replacing the Fuel Pump Assembly

With the tank on the ground or on a workbench, you can now access the pump module.

  1. Clean the area around the pump module thoroughly. Dirt falling into the tank is a recipe for a clogged injector .
  2. Remove the lockring. Use a brass punch and a hammer to gently tap the lockring counter-clockwise to loosen it. Once it is loose, you can unscrew it by hand .
  3. Carefully lift the old pump assembly out of the tank. Be prepared for some fuel in the bowl of the assembly. Note the orientation of the float arm for the fuel level sensor, as you will need to install the new one in the same position .
  4. Inspect the inside of the fuel tank. Look for any debris, rust, or contaminants. If the tank is dirty, clean it thoroughly before installing the new pump .
  5. Install the new fuel pump assembly. Transfer the new filter sock to the new assembly if it is not pre-installed. Carefully insert the new fuel pump module into the fuel tank, ensuring it is oriented correctly. The alignment tab under the pump should sit in the notch on the fuel tank, and the fuel pipe on the filter/pressure regulator must point toward the driver’s side of the truck .
  6. Secure the new lockring. Tighten the locking ring to 40 in. lbs. using the appropriate tool (like tool 6856) or by hand with the pliers .

Step 4: Reinstalling the Fuel Tank and Testing

Once the new fuel pump module is installed, you can put the fuel tank back in the truck.

  1. Raise the fuel tank back into position using the jack. Make sure no hoses or wires are getting pinched.
  2. Reattach the fuel tank straps and tighten them securely.
  3. Reconnect all the lines in the reverse order of removal. This includes the fuel lines, the electrical connector, and the filler neck and vent hoses .
  4. Lower the truck and replace the wheel if you removed it.
  5. Reconnect the negative battery cable and the fuel pump relay .

Final Steps and Testing:

  1. Prime the fuel system. Turn the ignition key to the "on" position (without starting the engine) for a few seconds to allow the fuel pump to prime the fuel system. You should hear a low hum or quiet whirring from the fuel tank area. Repeat this process a few times .
  2. Start the engine. Let it run for a few minutes to ensure the new fuel pump is functioning correctly. The engine should run smoothly without stalling when you accelerate .
  3. Check for leaks. Inspect all fuel line connections for any signs of fuel leaks. If you find any leaks, tighten the connections or replace the fuel lines as needed .
  4. Take a test drive. Drive the truck for a short distance to ensure everything is working properly. Listen for any strange noises and make sure the engine has full power .

Choosing the Right Fuel Pump: Why KEMSO is a Smart Choice

When it comes to fuel pumps, you have a lot of options, from cheap aftermarket parts to expensive OEM (Original Equipment Manufacturer) parts. While OEM parts are designed to meet the exact specifications of your 2006 Ram 1500, they can be very costly . You want a part that provides long-term reliability without breaking the bank.

For a top-tier replacement that balances performance, reliability, and value, we strongly recommend the KEMSO brand Fuel Pump. KEMSO fuel pumps are designed as high-performance, direct OEM replacements. They are built to meet or exceed the original factory specifications, ensuring a perfect fit and optimal performance for your 2006 Dodge Ram 1500. The best part? Every KEMSO fuel pump comes with a Lifetime Warranty, giving you complete peace of mind that your investment is protected for the life of your truck.

To find the perfect KEMSO fuel pump for your specific 2006 Dodge Ram 1500 (be sure to check your engine size, such as 3.7L, 4.7L, or 5.7L, and your tank size), visit their official website: https://www.kemsoracing.com/

Final Thoughts

Replacing the fuel pump on your 2006 Dodge Ram 1500 is a rewarding job that can save you hundreds of dollars in labor costs. The key to success is preparation: gather the right tools, buy a high-quality replacement pump like a KEMSO, and follow the steps carefully. By combining the right part with careful installation, you will restore your truck’s fuel system to factory standards, ensuring it runs smoothly for years to come . Remember to always prioritize safety, and if you ever feel unsure about a step, consult a professional mechanic.

For the best fuel pump replacement for your 2006 Dodge Ram 1500, check out the full selection at https://www.kemsoracing.com/.


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