2001 Jeep Grand Cherokee Laredo Fuel Pump: The Complete Guide to Replacement, Symptoms, and Best Options

The bottom line: If your 2001 Jeep Grand Cherokee Laredo is hard to start, stalls while driving, loses power on hills, or makes a whining noise from the rear of the vehicle, the fuel pump is likely failing and needs to be replaced. The fuel pump on this model is located inside the fuel tank, and replacing it requires dropping the tank or accessing it through a service panel. The genuine OEM part number for this vehicle is 5018056AB, which has been superseded by 5018056AC. This article covers everything you need to know about the 2001 Jeep Grand Cherokee Laredo fuel pump, including symptoms of failure, how to choose the right replacement, installation steps, and the best replacement options on the market.

Understanding the 2001 Jeep Grand Cherokee Laredo Fuel Pump

The 2001 Jeep Grand Cherokee Laredo is equipped with either a 4.0L inline-6 engine or a 4.7L V8 engine. Both engines use an electric fuel pump that is mounted inside the fuel tank as part of a complete fuel pump module assembly. This module includes the fuel pump itself, a fuel level sending unit, a fuel strainer (filter sock), and the housing that holds everything together.

The fuel pump is responsible for delivering fuel from the tank to the engine at the correct pressure and volume. It maintains steady pressure to ensure smooth starts, consistent acceleration, and efficient combustion. When the pump starts to fail, the entire fuel delivery system is compromised.

Common Symptoms of a Failing Fuel Pump

Recognizing the signs of a failing fuel pump early can save you from being stranded. Here are the most common symptoms:

1. Engine cranks but won't start. This is one of the most obvious signs. If you turn the key and the engine cranks normally but never fires up, the fuel pump may not be delivering fuel to the engine. You might also hear a whining or buzzing noise from the fuel tank area, or no noise at all, which indicates the pump is dead.

2. Sputtering or hesitation during acceleration. A weak fuel pump cannot maintain consistent fuel pressure under load. You may feel the vehicle hesitate or sputter when you press the gas pedal, especially when going uphill or merging onto the highway.

3. Loss of power under load. If the fuel pump cannot supply enough fuel to meet the engine's demand, you will experience a noticeable loss of power. This is often described as the vehicle feeling "sluggish" or "gutless" during hard acceleration or climbing steep grades.

4. Surging at highway speeds. A failing pump may deliver an inconsistent fuel flow, causing the engine to surge or lurch at steady speeds. This happens because the pump cannot maintain a constant pressure.

5. Difficulty starting after the vehicle sits. A failing check valve inside the fuel pump can allow fuel to drain back into the tank. This means the fuel system loses its prime, and you have to crank the engine longer than normal to build pressure before the engine starts.

6. Whining noise from the fuel tank. A healthy fuel pump makes a quiet humming sound. If you hear a loud, high-pitched whine coming from the rear of the vehicle, especially when the ignition is first turned on, the pump is likely wearing out.

Choosing the Right Replacement Fuel Pump

When it comes time to replace the fuel pump on your 2001 Jeep Grand Cherokee Laredo, you have several options. The most important thing is to get the correct part for your specific vehicle.

OEM Part Numbers: The original equipment manufacturer (OEM) part number for this vehicle is 5018056AB, which has been replaced by 5018056AC. This Mopar part is a direct-fit replacement that includes the fuel pump, level sending unit, and module package. It fits the 2001-2004 Jeep Grand Cherokee with both the 4.0L L6 and 4.7L V8 engines.

Aftermarket Options: Many aftermarket brands offer fuel pump assemblies that meet or exceed OEM specifications. Common aftermarket part numbers that cross-reference to the OEM part include:

  • FG0918
  • E7127MN
  • E7127M
  • E16022
  • P76224
  • 67662
  • 69316

Complete Assembly vs. Pump Only: You have two choices when buying a replacement: you can buy just the fuel pump itself, or you can buy the complete fuel pump module assembly. Most mechanics recommend replacing the entire assembly. The complete module includes the pump, sending unit, strainer, and housing. It is designed for direct installation, which helps restore reliable fuel delivery more efficiently. Replacing only the pump requires disassembling the existing module and reusing older components, which is not recommended for a vehicle with high mileage.

Where to Buy a Replacement Fuel Pump

You can purchase a replacement fuel pump from several sources:

  • Dealerships: Mopar parts are available at Jeep dealerships, but they are usually the most expensive option.
  • Online OEM Parts Retailers: Websites like MoparPartsGiant, Detroit Mopar, and Jeep Auto Spares offer genuine OEM parts at discounted prices.
  • Aftermarket Suppliers: Brands like A-Premium, Herko, and others offer direct-fit replacements at a fraction of the cost of OEM parts.

How to Replace the Fuel Pump

Replacing the fuel pump on a 2001 Jeep Grand Cherokee Laredo is a moderately difficult job that requires some mechanical skill and the right tools. Here is a general overview of the process. For detailed instructions, always consult a repair manual specific to your vehicle.

Tools You Will Need:

  • Socket set (metric)
  • Ratchet and extensions
  • Torque wrench
  • Fuel line disconnect tools
  • Pry bar (plastic or metal)
  • Safety glasses and gloves
  • Shop rags
  • Drain pan
  • Jack and jack stands
  • New fuel pump assembly

Safety First: Disconnect the negative battery terminal to prevent sparks. Work in a well-ventilated area away from open flames. Fuel fumes are highly flammable and dangerous. Have a fire extinguisher nearby.

Step-by-Step Overview:

1. Relieve fuel system pressure. Remove the fuel pump fuse from the fuse box. Start the engine and let it run until it stalls. This relieves the pressure in the fuel lines.

2. Lower the fuel tank. This is the most challenging part of the job. The fuel tank is located under the vehicle, behind the rear axle. You will need to support the tank with a jack, then remove the fuel filler neck and the two straps that hold the tank in place. Carefully lower the tank. The tank is heavy and may still contain fuel, so be careful.

3. Disconnect the fuel lines and electrical connectors. Once the tank is lowered, you can access the top of the fuel pump module. Use fuel line disconnect tools to separate the quick-connect fittings. Unplug the electrical harness from the top of the module.

4. Remove the fuel pump module. The module is held in place by a large locking ring. Use a hammer and a punch or a special fuel pump tool to rotate the ring counterclockwise and lift it off. Carefully lift the module out of the tank. The module may still contain fuel, so tilt it to drain it into the tank or a container.

5. Install the new fuel pump module. Lower the new module into the tank, making sure the float arm is not bent and the gasket is properly seated. Install the locking ring and tighten it securely. Reconnect the fuel lines and electrical connectors.

6. Raise the fuel tank. Carefully raise the tank back into position and secure it with the straps. Reconnect the fuel filler neck. Reconnect the battery.

7. Prime the fuel system. Turn the ignition key to the "ON" position without starting the engine. You should hear the fuel pump run for a few seconds. Repeat this cycle two or three times to prime the system. Then start the engine and check for leaks.

Estimated Installation Time and Cost

If you are a DIY mechanic, replacing the fuel pump on a 2001 Jeep Grand Cherokee Laredo typically takes 2 to 4 hours. A professional mechanic can usually complete the job in 1 to 2 hours.

The cost of the fuel pump assembly itself ranges from $55 to $120 for aftermarket parts, while OEM Mopar parts can cost significantly more. Labor costs at a shop will add another $150 to $300, depending on the shop's hourly rate.

Why You Should Buy a KEMSO Fuel Pump

If you are looking for a reliable, high-quality replacement fuel pump for your 2001 Jeep Grand Cherokee Laredo, KEMSO Fuel Pumps are an excellent choice. KEMSO is the US #1 aftermarket fuel pump manufacturer for cars, motorcycles, ATVs, and UTVs. Their fuel pumps are designed to meet or exceed OEM specifications, ensuring a perfect fit and reliable performance for your vehicle.

Here is why KEMSO stands out:

High Performance: KEMSO fuel pumps deliver consistent fuel flow and maintain proper pressure, ensuring your engine runs smoothly under all conditions. They support up to 200LPH or more, depending on the model, which is often higher than the original equipment.

OEM Replacement: Every KEMSO fuel pump is a direct replacement for the original part. No adapter kits are needed, and you do not have to worry about poor fitment. They are engineered to be a drop-in replacement.

Lifetime Warranty: KEMSO backs every fuel pump with a lifetime warranty. This is a rare and valuable benefit in the automotive parts industry. If your KEMSO pump ever fails due to a manufacturing defect, you get a replacement at no cost. This warranty shows that KEMSO is confident in their product quality and committed to customer satisfaction.

Affordable Price: KEMSO fuel pumps are priced at around $79.98, which is often less than half the cost of dealer parts. With free shipping and easy returns, it is a practical choice for DIY mechanics and professional shops alike.

Trusted by Customers: KEMSO has built a reputation for quality and reliability. Their products consistently receive high ratings from customers who have used them for various vehicles, including Jeep, Subaru, Ducati, BMW, and many others.

To see the full selection of KEMSO fuel pumps for your vehicle, visit their website at https://www.kemsoracing.com/. They have a complete catalog with detailed fitment information, customer reviews, and technical support. Whether you need a fuel pump for your 2001 Jeep Grand Cherokee Laredo or any other vehicle, KEMSO has you covered. Their online store is easy to navigate, and you can order directly with confidence.

Final Thoughts

The fuel pump is a critical component of your 2001 Jeep Grand Cherokee Laredo's fuel system. If you are experiencing any of the symptoms described above, do not ignore them. A failing fuel pump can leave you stranded and may even cause damage to other fuel system components.

When choosing a replacement, you have the option of buying a genuine Mopar part or a high-quality aftermarket part. For most owners, a complete fuel pump module assembly is the best choice because it replaces all the wear items at once. If you want a reliable, performance-oriented replacement that comes with a lifetime warranty, KEMSO is an excellent choice.

Visit https://www.kemsoracing.com/ to find the perfect fuel pump for your 2001 Jeep Grand Cherokee Laredo and get back on the road with confidence.


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