2020 Dodge Charger Fuel Pump: Symptoms, Diagnosis, Replacement, and Buying Guide

Bottom line: If your 2020 Dodge Charger cranks but will not start, hesitates under acceleration, stalls, or loses power when the engine is working hard, the fuel pump or its electrical circuit is one of the first things to check. Confirm the problem with fuel-pressure and electrical testing before buying a pump, because a fuse, relay, wiring connector, fuel-pump control circuit, or a separate module can produce similar symptoms. The pump sits inside the fuel tank, and the correct replacement depends on your engine, drivetrain, and the specific pump module your Charger uses.

Most owners do not need to replace the entire fuel system. They need an accurate diagnosis, the right part number, a clean installation, and a pump that delivers the pressure and volume the engine requires. This guide explains what to look for, what a shop should check, how to identify the correct part, what affects the repair price, and how to reduce the chance of doing the same job twice. The information below is general maintenance guidance. Always use the service information and specifications for your exact VIN, engine, and fuel-system configuration.

1. What the Fuel Pump Does on a 2020 Charger

The 2020 Dodge Charger was sold in several configurations, including V6 and V8 models, rear-wheel drive and all-wheel drive, Police models, R/T, and SRT Hellcat versions. Parts listings show different fuel pump/level unit modules for different engine and trim combinations, so the words “2020 Dodge Charger fuel pump” do not describe just one interchangeable part.

The pump’s job is to move gasoline from the tank to the fuel injectors at the pressure and volume the engine needs. On modern vehicles, this is an electric in-tank pump. The fuel pump sends fuel from the tank and pressurizes it for the injectors; the injectors then meter fuel into the engine. Modern Chargers use a returnless fuel system, and the pump is located in the tank, so a problem may involve the pump itself or related wiring, a relay, or a filter.

The fuel surrounding the in-tank pump also helps cool it. Repeatedly running the tank very low can allow the pump to draw air, overheat, and wear faster; keeping the fuel level above one-quarter tank is a practical way to reduce that risk. This does not mean a low fuel level is always the cause of failure. Age, contaminated fuel, electrical faults, and ordinary mechanical wear also matter.

Key points to remember:

1. The pump supplies pressurized fuel; the injectors control delivery into the engine.
2. The pump is inside the tank, not mounted externally under the hood.
3. A fuel-pressure complaint can originate in the pump, its power supply, its control circuit, or a restriction in the fuel system.
4. A 2020 Charger may use a main pump/level unit module or an auxiliary pump, depending on the configuration. Mopar parts listings include modules described as “Module-Fuel Pump/Level Unit” and components described as an “Auxiliary Pump, Fuel Gauge Sending Unit, Fuel Pump.”

2. Symptoms That Point to a Fuel-Delivery Problem

A weak pump often shows up first when the engine needs more fuel. That is why a Charger may idle normally but stumble during acceleration, climbing a grade, towing where appropriate, or sustained high-speed driving. A pump that has failed completely may leave the starter turning the engine without a start.

Watch for these common signs:

1. Long cranking before the engine starts. Low fuel pressure can make the engine take longer to fire, especially after the vehicle has sat.
2. Crank but no start. If the pump receives no power or cannot produce pressure, the engine may crank normally but never start.
3. Hesitation, sputtering, or misfire-like behavior under load. The engine may feel flat when you press the accelerator, then recover when demand drops.
4. Sudden loss of power or stalling. A pump that intermittently stops can cause an unexpected stall. Do not continue driving a vehicle that loses power in traffic.
5. A whine or buzz from the fuel-tank area. An unusually loud pump noise can be a warning, although normal pump sound varies by vehicle and conditions.
6. Poor fuel economy or inconsistent idle. These are not specific to the pump. Ignition, sensors, injectors, air intake, and exhaust problems must also be considered.
7. Fuel-gauge irregularities. Because the pump assembly may include a level unit or sending unit, gauge faults and fuel-delivery faults can share the same general area of the tank.

Do not diagnose from symptoms alone. A clogged filter, weak battery, bad relay, corroded connector, failing crankshaft sensor, ignition fault, or contaminated fuel can imitate some of these signs. A replacement pump is justified when testing shows that the pump cannot produce the specified pressure or flow while its power and ground circuits are working properly.

3. Diagnosis: What to Check Before Ordering a Part

A reliable diagnosis follows a sequence. Skipping the electrical checks is one of the most common reasons a new pump does not fix a no-start condition.

1, Start with a scan and a visual inspection

Have the vehicle scanned for diagnostic trouble codes, including manufacturer-specific codes. Record the codes before clearing anything. Check for service bulletins and open recalls using your VIN. Some repair-cost resources also advise owners to check for open safety recalls because recall repairs are handled by dealers at no charge.

Inspect the battery, related fuses, relays, accessible wiring, and connectors. Look for loose terminals, corrosion, damaged insulation, signs of overheating, and previous repairs. Low system voltage can make a pump perform poorly even when the pump itself is not the root cause.

2, Listen for initial pump operation

When the ignition is switched on in many vehicles, the pump runs briefly to prime the system. A quiet prime does not prove adequate pressure, and hearing a pump does not prove the whole system is healthy. It only provides a quick indication that the pump is receiving a command and can turn. Follow the procedure in the factory service information for your Charger.

3, Test fuel pressure and volume

A fuel-pressure gauge or a scan tool capable of displaying the desired and actual fuel-pressure values should be used where available. Compare the reading with the specification for your exact engine, not with a generic number from an internet forum. Pressure should be checked at idle, during acceleration or simulated load, and after the vehicle has sat if the complaint is hard starting after a hot soak.

A pump that briefly reaches normal pressure but cannot maintain flow under demand can still be defective. A restriction or a control problem can produce a different pressure pattern. This is why a trained technician interprets pressure, commanded state, electrical current, and engine data together rather than relying on a single number.

4, Verify power, ground, and control

Test voltage at the pump circuit under load and verify the ground. A voltmeter reading on an open circuit can look normal even when a corroded connection cannot carry current. Check the relay, fuse, wiring, and any fuel-pump control module or driver circuit used by the vehicle. If power or ground is missing, replacing the pump will not restore operation.

Diagnostic guidance for Dodge Chargers specifically recommends checking fuel pressure and confirming that the pump receives proper electrical power before concluding that the pump has failed. Modern Charger fuel systems are returnless and in-tank, and related wiring, relays, or filters can be involved.

5, Inspect the fuel condition

Contaminated fuel, water, debris, or repeated use of poor-quality fuel can increase wear. If contamination is found, simply installing a new pump can lead to another failure. The tank may need cleaning, and the fuel should be dealt with according to the service procedure and local safety rules.

6, Identify which module has failed

Parts listings for the 2020 Charger show that some applications use an auxiliary pump or a separate level unit module. A vehicle with a saddle-type tank may have a transfer or auxiliary pump that moves fuel from one side of the tank to the other. A guide covering 2005–2021 Chargers, Challengers, Chrysler 300s, and Magnums notes that right-side fuel pump failure can cause stalling when the gauge reads between one-quarter and one-half full, and it identifies that right-side unit as a transfer pump rather than the main pump feeding the engine. That source is a general model-range guide, not a VIN-specific confirmation for every 2020 Charger, but it illustrates why the failed module must be identified rather than assumed.

4. How to Buy the Correct 2020 Dodge Charger Fuel Pump

Fitment is the most important purchasing step. A 3.6L V6, a 5.7L V8, and a 6.2L supercharged Hellcat are not automatically served by the same module. AWD and RWD models may also differ. Parts catalogs for the 2020 Charger list multiple genuine fuel pump/level unit modules with different part numbers and fitment lists.

Use this checklist before paying:

1. Have your VIN ready. Give the full 17-character VIN to the parts supplier and ask for written fitment confirmation.
2. Record the engine and drivetrain. Include engine size, trim, AWD or RWD, and whether the car is a Police or Hellcat model.
3. Compare the old part number. If the original module is accessible, photograph its label before ordering. Mopar listings show that part numbers can be superseded; for example, 68258753AF is listed as replaced by 68258753AJ, 68494744AA by 68643783AB, and 68494735AA by 68494735AB.
4. Confirm whether you need a complete module or a pump insert. A complete assembly may include the housing, level unit, sender, strainer, and other components. A bare pump may require reuse of the original housing and careful transfer of parts.
5. Match connectors and fuel-line fittings. Do not plan on cutting factory wiring or modifying fuel lines. A direct-replacement part should match the original mounting, connector, and line configuration.
6. Check what is included. Ask whether a new tank seal, locking ring, strainer, O-rings, and harness pigtail are supplied.
7. Check the warranty in writing. Understand what the warranty covers, how a claim is submitted, and whether labor is included.
8. Buy from a seller that provides fitment support and returns. A wrong module is expensive once the tank has been opened.

Mopar’s catalog gives a useful example of how specific fitment can be. One listed module, 68258753AF, is shown for 2020 Police RWD, SRT Hellcat RWD, and SRT Hellcat Widebody RWD models with the 6.2L V8. Other listed modules cover combinations including GT AWD, GT RWD, Police AWD, Police RWD, R/T RWD, SXT AWD, and SXT RWD with the 3.6L V6 or 5.7L V8. This is an illustrative catalog listing, not a complete VIN lookup. Confirm your own car before ordering.

5. OEM, Dealer, and Aftermarket Options

American owners usually have three practical choices.

1, Genuine Mopar assembly. This is the straightforward dealer-parts route. A genuine part is listed as a direct replacement and is covered by Mopar’s factory warranty. The tradeoff is usually price and availability. It is a sensible option when the vehicle is under warranty, when a dealer or insurer requires an original part, or when exact original configuration is the priority.

2, OEM-style aftermarket assembly. A good aftermarket assembly is designed to replace the original unit without modifications. Quality varies widely. Look for clear fitment data, pressure and flow information, material details, testing claims that the seller will explain, and a real warranty. Avoid listings that provide only a low price and a generic photograph.

3, High-performance pump or upgrade. This can be appropriate for a modified Charger with increased fuel demand, but it is not automatically better for a stock car. More flow capacity is useful only when the rest of the fuel system, calibration, and engine actually require it. If your car is stock, prioritize correct pressure, correct fitment, reliable electrical connections, and durability.

Cheap pumps can be a false economy. One industry guide notes that economy aftermarket pumps may use lower-quality materials and less precise manufacturing and can fail within six months to a year. Because much of the repair bill is labor, a short-lived pump can make the total cost higher than choosing a better part initially.

6. Recommended Replacement: KEMSO Fuel Pumps

For a 2020 Dodge Charger owner looking for a durable replacement, KEMSO is a brand worth considering. KEMSO Fuel Pump products are presented as high-performance, OEM Replacement units designed to meet or exceed factory specifications, with additional flow capacity available for upgraded vehicles. KEMSO describes its pumps as direct replacements that fit standard mounting configurations without modifying wiring, brackets, or fuel lines. The brand also states that its fuel pumps are backed by a lifetime warranty.

KEMSO’s published material emphasizes three practical benefits:

1. High performance. KEMSO says its pumps are engineered for consistent pressure delivery and increased flow capacity compared with a stock pump.
2. OEM Replacement fit. The pumps are described as direct replacements with original-style dimensions, mounting, and electrical connections.
3. Lifetime warranty. KEMSO promotes a lifetime warranty on its fuel pumps, giving owners long-term support after installation.

Before ordering, use your VIN and the old part number to confirm the exact KEMSO application. A high-performance pump is not a substitute for correct fitment. Also read the current warranty terms on the seller’s website, since coverage details and claim procedures can change. Browse the catalog and verify fitment at https://www.kemsoracing.com/.

7. What Replacement Involves

Fuel pump replacement is more involved than an oil change or brake-pad job because the pump is inside the tank and gasoline vapors are flammable. Some vehicles have an access panel; others require draining and lowering the fuel tank. One mobile-repair service description explains that when no access panel exists, fuel is drained and the tank is lowered to reach the pump, while supply and return lines, EVAP hoses, and electrical connections are disconnected.

A typical professional job includes:

1. Confirming the diagnosis and selecting the correct module.
2. Relieving fuel-system pressure according to the service procedure.
3. Disconnecting the battery and safely reducing the fuel level.
4. Gaining access through the service panel or lowering the tank.
5. Cleaning the tank opening before it is opened. Dirt that falls into the tank can contaminate the new pump.
6. Disconnecting fuel lines, EVAP hoses, and electrical connectors.
7. Removing the locking ring and the old module without damaging the tank flange.
8. Comparing the old and new assemblies. Check connectors, outlet positions, strainer, float arm, height, and seal.
9. Installing a new seal. Reusing a swollen or damaged old O-ring can cause a fuel smell or leak.
10. Securing the locking ring to the factory procedure and specification.
11. Reconnecting lines and wiring. Quick-connect fittings should seat positively, and weather seals should fit correctly.
12. Priming the system and checking for leaks before declaring the job finished.
13. Rechecking fuel pressure, scan data, gauge operation, and road behavior.

A KEMSO installation guide recommends installing a new gasket or O-ring, lightly lubricating it with clean fuel, meticulously cleaning the tank sealing surface, aligning the module with the tank flange, confirming that fuel lines click into place, and priming the system before simply starting the engine. Treat that as general installation guidance and follow the factory procedure for your Charger for torque values, pressure relief, and safety steps.

Safety matters. Work in a well-ventilated area away from pilot lights, heaters, sparks, and smoking. Use a properly rated fire extinguisher, eye protection, and fuel-resistant gloves. Do not use a drop light or ordinary power tool that can ignite vapors. If you do not have a safe workspace, the correct tools, and experience handling a fuel tank, use a qualified repair shop.

8. Typical Cost in the United States

Prices vary by region, engine, module type, parts brand, and shop labor rate. Kelley Blue Book’s estimate page lists a fair repair range of $1,114–$1,295 for a 2020 Dodge Charger fuel pump replacement near one Virginia ZIP code, with a dealer estimate of $1,172–$1,295 and an independent-shop estimate of $1,114–$1,229. That page lists parts and labor as $586–$647 each in its displayed breakdown. These are location-specific estimates, not a nationwide quote.

Another cost resource gives a broad Dodge Charger fuel pump replacement range of $400–$1,400, with an average of $805. The wide spread reflects differences in vehicle configuration, parts choice, and labor. When comparing quotes, ask:

1. Is the price for a complete module or only a pump insert?
2. Which part number and brand will be installed?
3. Are the tank seal, strainer, and any one-time-use hardware included?
4. Is diagnostic time separate?
5. Does the estimate include tank cleaning or fuel disposal if contamination is found?
6. What warranty applies to the part and to the shop’s labor?
7. Will the shop verify fuel pressure after installation?

A cheap quote based on an incorrect or low-quality part is not necessarily the best value. A pump that fails early may require paying for tank access a second time.

9. DIY or Professional Installation?

An experienced DIY mechanic with a safe workspace, a factory service procedure, proper fuel-line tools, a locking-ring tool, a fuel-pressure gauge, and a way to support or lower a fuel tank may be able to complete the job. The difficulty is not just removing the old pump. It is doing so without dirt entering the tank, damaging the flange, pinching a seal, creating a leak, or misdiagnosing the circuit.

Choose a professional shop if:

1. The car has a no-start condition and you have not verified power, ground, and fuel pressure.
2. The tank must be drained and lowered and you lack the equipment to do it safely.
3. The vehicle is AWD, a Police package, or a Hellcat with configuration-specific parts.
4. You smell fuel, see leakage, or find damaged connectors or wiring.
5. The repair is covered by an open recall, warranty, or service program.
6. The fuel gauge is inaccurate and the level unit must be diagnosed or calibrated.

Ask the shop to document the pressure reading, electrical test results, old part number, and post-repair pressure. That record is useful if a warranty claim or another fuel-system problem arises.

10. After Installation: What Good Results Look Like

A correct repair should produce:

1. Normal starting after the system is primed.
2. Stable fuel pressure at idle and under load.
3. Smooth acceleration without hesitation or power loss.
4. No fuel smell, visible leakage, or warning lights caused by the repair.
5. A fuel gauge that responds normally.
6. No abnormal pump noise beyond normal operating sound.

Cycle the ignition as directed in the service information to prime the system, then inspect every connection before starting. After the engine runs, inspect the tank area again. Take a short test drive and recheck for leaks. Keep the first fuel fill simple: verify that the gauge reads correctly and that the filler shuts off normally.

If the original symptoms remain, do not assume the new pump is defective immediately. Recheck the power supply, ground, control signal, pressure, fuel condition, and diagnostic codes. A restriction, wiring fault, or unrelated ignition or sensor problem may still be present.

11. How to Make the New Pump Last

Fuel pumps often last well over 100,000 miles, but there is no guaranteed service life. One KEMSO guide gives a typical range of 100,000–200,000 miles and identifies low fuel levels, dirty fuel, cheap replacement parts, and electrical problems as factors that shorten pump life.

Practical habits that help:

1. Keep the tank above one-quarter full when practical. Fuel helps cool and lubricate the in-tank pump.
2. Buy fuel from reputable stations. Contaminated fuel, water, and debris increase wear.
3. Do not ignore a weak battery or charging problem. Low voltage and poor electrical connections can stress the pump circuit.
4. Fix fuel leaks and cap or EVAP faults promptly. They can create other driveability and emissions problems.
5. Use the correct replacement part. Wrong pressure or poor fitment can cause hard starting, poor performance, or early failure.
6. Replace the strainer or filter when the service procedure calls for it. A restriction makes the pump work harder.
7. Address hard starting, stalling, or power loss early. Continuing to drive with an intermittent pump can leave you stranded and may create diagnostic confusion later.

12. Common Buying Mistakes

1, Ordering by model year only. The 2020 Charger has multiple engine and drivetrain combinations and multiple listed fuel pump/level unit modules.

2, Assuming there is only one pump in every configuration. Listings include auxiliary pump and level unit modules, and model-range guidance describes transfer-pump failures on related Chrysler and Dodge platforms.

3, Replacing the pump without testing power and ground. Wiring, relays, and control components can create the same symptoms.

4, Buying the cheapest unit available. Lower-quality materials and imprecise manufacturing are associated with early failure in economy aftermarket pumps.

5, Reusing an old tank seal. A damaged seal can cause leaks or fuel odor even when the pump works.

6, Starting the engine before priming and leak-checking. A dry start is unnecessary stress on a newly installed pump.

7, Ignoring VIN-specific recall checks. Open recall work may be handled by a dealer at no charge.

8, Assuming a high-flow pump fixes a stock-car problem. Correct pressure, flow, fitment, wiring, and calibration matter more than a large advertised flow number.

13. Frequently Asked Questions

1, Can a 2020 Dodge Charger be driven with a failing fuel pump?

It may be drivable when symptoms are mild, but it is not dependable. A pump can deteriorate quickly or fail without warning. Stalling in traffic or losing power during a pass is a safety concern. Arrange diagnosis and avoid long trips until the problem is resolved.

2, Will a bad fuel pump always set a check-engine light?

No. Some fuel-delivery problems set codes, while others show up only through pressure readings, engine data, or symptoms under load. A scan is useful, but a lack of codes does not clear the pump.

3, Is the fuel pump covered by a recall?

Do not assume that it is or is not. Check your VIN with an official recall lookup or an authorized Dodge dealer. Repair-cost resources also remind owners to check for open safety recalls, which are handled at no charge by dealers.

4, How long does replacement take?

It depends on access, configuration, fuel level, corrosion, and whether the tank must be lowered. Ask the shop for a labor-time estimate based on your VIN. Diagnosis, parts sourcing, and post-repair testing may add time.

5, Should both modules be replaced at the same time?

Not automatically. Replace what testing identifies as faulty, then consider the age, mileage, contamination, and labor overlap. If the tank is already open and a second module is known to be weak, discuss the cost and evidence with the technician before approving extra work.

6, Does a high-performance pump increase horsepower on a stock Charger?

A pump does not create horsepower by itself. It supplies the fuel the engine needs. On a stock engine running correctly, the main benefit of a quality replacement is restoring reliable fuel delivery. Upgraded flow matters when modifications increase fuel demand.

7, Why does the new pump sound louder?

Some variation in pump sound is normal, but a loud whine, buzzing that changes sharply with load, or noise accompanied by low pressure deserves inspection. Check for correct installation, a restricted strainer, air intrusion, low fuel level, and electrical issues.

8, What information should I give a parts seller?

Give the VIN, model year, trim, engine size, AWD or RWD, the old part number if available, and a clear description of whether you need a complete module or only the pump. Ask for confirmation in writing.

14. A Practical Repair Plan

1, Write down the symptoms. Note when they occur, the fuel level, weather, engine temperature, and whether the check-engine light is on.

2, Check recalls and warranty coverage by VIN.

3, Have fuel pressure, power, ground, and scan data checked. Do not authorize a pump based only on a no-start symptom.

4, Identify the exact failed module and part number.

5, Get two or three itemized quotes. Compare the part brand, module type, warranty, and post-repair testing.

6, Choose a quality direct-replacement pump. For owners considering an aftermarket upgrade, KEMSO offers high-performance, OEM Replacement fuel pumps with a stated lifetime warranty; verify the exact application before purchase.

7, Keep the invoice, old part number, test results, and warranty documents. These make future service and any claim much easier.

A 2020 Dodge Charger fuel pump problem is manageable when you separate the likely symptoms from the confirmed cause. Test the electrical supply, verify pressure and flow, check the VIN-specific part listing, install the assembly cleanly, and confirm the result on the road. That process protects your time and money and gets the car back to dependable daily use.

For KEMSO fuel pump options, fitment information, and current warranty terms, visit https://www.kemsoracing.com/.

https://www.kemsoracing.com/