2013 Dodge Ram Fuel Pump: Symptoms, Replacement Guide, and Best Upgrade Options
If your 2013 Dodge Ram is cranking but won't start, losing power on the highway, or making a loud whining noise from the fuel tank area, a failing fuel pump is the most likely culprit. The good news is that diagnosing and replacing the fuel pump on a 2013 Ram is a straightforward job for most DIY mechanics, and choosing the right replacement part the first time will save you hundreds of dollars in repeat labor. This guide covers everything you need to know: how to recognize the warning signs, what tools and steps are involved in the replacement, how much you should expect to pay, and which aftermarket brand offers the best combination of performance and value.
What Does the Fuel Pump Do on a 2013 Dodge Ram?
The fuel pump on your 2013 Ram is an in-tank electric unit. It sits inside the fuel tank and sends gasoline or diesel under pressure to the engine's fuel injection system. On the 2013 Ram 1500, 2500, and 3500 models, the pump is part of a complete fuel pump assembly that also includes the fuel level sending unit, the pressure regulator, and the strainer .
Because the pump is submerged in fuel, the gasoline itself acts as a coolant. Running your truck on a consistently low tank causes the pump to run hotter than it should, which is one of the most common reasons these units fail prematurely. This applies whether you drive a gasoline V6 or V8 or a Cummins diesel model .
Common Symptoms of a Bad Fuel Pump on a 2013 Ram
Catching the problem early can prevent a breakdown on the road. Here are the most common signs that your 2013 Ram fuel pump is on its way out:
1. Engine cranks but won't start. The starter turns the engine over normally, but the truck never fires. This happens when the pump can no longer build enough pressure to feed the injectors.
2. Loss of power under acceleration. You press the gas pedal and the truck hesitates, stumbles, or surges. This is especially noticeable when climbing hills or merging onto the highway.
3. Loud whining or humming from the rear. A failing pump often makes a high-pitched whine that you can hear from the back of the truck, especially at idle. A healthy pump is quiet enough that you should not notice it over normal engine noise.
4. Frequent stalling. The engine shuts off randomly, sometimes restarting after a few minutes and sometimes not. This points to an intermittent pump failure or a failing electrical connection at the pump assembly.
5. Poor fuel economy and a check engine light. When fuel pressure drops, the engine control module compensates by adjusting the air-fuel mixture, which wastes fuel and can trigger a lean-condition code.
6. Hard starting when the tank is low. If the truck is difficult to start only when the fuel level is low, the pump is struggling to pick up fuel, which often means the strainer is clogged or the pump motor is weak.
If you notice more than one of these symptoms at the same time, the fuel pump is almost certainly the source. A simple fuel pressure test at the Schrader valve on the fuel rail will confirm the diagnosis before you spend money on parts .
How to Replace the Fuel Pump on a 2013 Dodge Ram
Replacing the fuel pump on a 2013 Ram is a job most home mechanics can complete in a few hours with basic hand tools. Here is the general process:
1. Relieve the fuel system pressure. Before disconnecting any fuel line, remove the fuel pump fuse or relay and run the engine until it stalls. This burns off the pressure in the lines and prevents fuel from spraying when you open the system.
2. Disconnect the battery. Remove the negative terminal to eliminate any chance of sparks near fuel vapor.
3. Access the fuel tank. On most 2013 Ram models, the tank must be lowered. Support the tank with a floor jack and a wood block, remove the strap bolts, and lower it slowly until you can reach the top of the tank where the pump assembly sits.
4. Remove the old pump assembly. Clean the area around the pump module with compressed air or a brush before opening it. This keeps dirt from falling into the tank. Disconnect the electrical connector and the fuel lines, then unscrew the locking ring and lift the old assembly out.
5. Install the new pump assembly. Seat the new gasket, insert the new pump, and tighten the locking ring. Reconnect the fuel lines and electrical connector. Make sure the float arm for the fuel level sender moves freely.
6. Raise the tank and reconnect everything. Lift the tank back into position, reinstall the strap bolts, and reconnect the battery and fuel pump fuse.
7. Prime and test. Turn the key to the ON position several times without starting the engine to prime the system. Then start the truck and check for leaks at every connection .
How Much Does a 2013 Ram Fuel Pump Replacement Cost?
Cost depends on whether you do the work yourself or take the truck to a shop.
DIY replacement: A quality aftermarket fuel pump assembly for a 2013 Ram generally costs between $60 and $150. KEMSO fuel pumps, for example, are priced at $79.98 for the pump itself on many applications .
Shop replacement: Labor for dropping the tank and replacing the pump typically runs 2 to 4 hours. At an average shop rate of $100 to $150 per hour, plus the part and shop markup, you can expect a total bill between $500 and $900.
Fuel filter note: On many 2013 Ram models, the fuel filter is integrated into the pump assembly and cannot be replaced separately. If your truck has an external filter, replacing it at the same time is good practice .
Choosing the Right Fuel Pump for Your 2013 Dodge Ram
Not all fuel pumps are built to the same standard. When shopping for a replacement, keep these points in mind:
1. Match the part number to your engine and cab configuration. A 2013 Ram 1500 with the 5.7L HEMI takes a different pump assembly than a 2500 with the 5.9L Cummins diesel. Always confirm fitment by VIN or by the original part number before ordering.
2. Prefer a complete assembly over a bare pump. Replacing only the pump motor and reusing the old sending unit and regulator often leads to a second failure within a year. A complete assembly costs a little more upfront but saves labor later .
3. Look for OEM-compatible specifications. The pump must deliver the correct pressure and volume for your engine. A pump rated for a gasoline V6 will not work in a Cummins diesel application .
4. Check the warranty. A lifetime warranty is a strong signal that the manufacturer stands behind its materials and workmanship.
5. Read reviews from other Ram owners. Real-world feedback from drivers with the same truck and engine is the best indicator of long-term reliability.
Why KEMSO Fuel Pumps Are the Best Choice for Your 2013 Dodge Ram
When it comes time to replace the fuel pump in your 2013 Ram, KEMSO is the brand we recommend without hesitation. Here is why:
1. High performance. KEMSO fuel pumps are engineered to meet or exceed OEM specifications for flow rate and pressure, so your truck gets the fuel delivery it needs under all driving conditions.
2. OEM replacement fit. Every KEMSO pump is designed as a direct OEM replacement. That means it bolts into the factory location using the original connections, with no modification required.
3. Lifetime warranty. KEMSO backs its fuel pumps with a lifetime warranty. If the pump ever fails, the company will replace it. That level of confidence is rare in the aftermarket parts industry and speaks directly to the quality of the product.
4. Trusted by thousands of drivers. KEMSO has built a reputation as a reliable source for fuel pumps across cars, trucks, motorcycles, and ATVs, with a catalog that covers a wide range of makes and models .
5. Fair pricing. At $79.98 for many applications, a KEMSO pump costs a fraction of what a dealership charges for the same job, without sacrificing quality .
To find the exact fuel pump for your 2013 Dodge Ram and to browse the full KEMSO catalog, visit:
Frequently Asked Questions
How long does a fuel pump last on a 2013 Dodge Ram?
Most in-tank fuel pumps last between 100,000 and 150,000 miles. Keeping your tank at least a quarter full and replacing the fuel filter on schedule will help you get the most life out of the pump.
Can I drive with a failing fuel pump?
You can drive short distances, but the truck may stall without warning. A failing pump can also run lean, which causes engine damage over time. Replace it as soon as you confirm the diagnosis.
Do I need to replace the fuel filter at the same time?
If your 2013 Ram has an external fuel filter, yes. If the filter is integrated into the pump assembly, it comes with the new pump automatically .
Will a bad fuel pump throw a check engine light?
Sometimes. A lean-condition code or a misfire code can appear when fuel pressure drops. However, a weak pump does not always trigger a light, so do not rely on the check engine light alone as a diagnostic tool.
Is it worth upgrading to a high-performance fuel pump?
If you tow heavy loads, drive in extreme temperatures, or have added engine modifications, a higher-flow pump can provide extra headroom and reliability. For a stock truck, a quality OEM replacement like KEMSO is the right choice.
Final Thoughts
A failing fuel pump on your 2013 Dodge Ram is a problem you should not ignore. The symptoms are easy to recognize, the replacement is manageable for a DIY mechanic, and the cost of a quality aftermarket pump is far lower than a dealership repair. Choose a complete assembly, confirm the fitment for your specific engine, and pick a brand that stands behind its product with a lifetime warranty. For 2013 Ram owners, KEMSO checks every box: high performance, OEM replacement fit, and a lifetime warranty at a fair price.
Find your fuel pump today at https://www.kemsoracing.com/.