07 Charger Fuel Pump: The Complete Guide to Symptoms, Replacement, and Best Options
Common Symptoms of a Failing Fuel Pump in a 2007 Dodge Charger
A failing fuel pump doesn't always fail completely at once. It typically gives warning signs. Here are the most common symptoms to watch for:
1. Engine Hesitation or Stalling, Especially at High Speed
If your Charger stumbles, hesitates, or stalls when you're accelerating or driving at highway speeds, the fuel pump may not be delivering enough fuel pressure under load. This is one of the first signs of a pump wearing out.
2. Difficulty Starting the Engine
A weak fuel pump may not build enough pressure in the fuel rail to allow the engine to start quickly. You might notice the engine cranking longer than usual before firing up.
3. Whining Noise Coming from the Fuel Tank
A healthy fuel pump makes a quiet hum. If you hear a loud, high-pitched whining sound coming from the rear of the car (near the gas tank), the pump bearings are likely failing.
4. Loss of Power or Acceleration
If the engine feels sluggish or lacks power when you press the gas pedal, especially going uphill or merging onto the highway, the fuel pump may be struggling to supply enough fuel.
5. Decreased Fuel Efficiency
A failing pump that can't maintain consistent pressure forces the engine to run rich or lean, causing a noticeable drop in gas mileage.
6. Check Engine Light Illuminates
The ECU monitors fuel system pressure and trim. A failing pump often triggers diagnostic trouble codes related to fuel pressure or lean fuel mixture.
How to Diagnose the Problem
Before replacing the pump, confirm the issue. Here are simple steps:
Start by checking the fuel pump fuse and relay in the fuse box. If they are fine, turn the key to the "ON" position (without starting the engine) and listen for a 2-3 second buzz from the fuel tank area. No sound indicates the pump isn't getting power or has failed. For a more precise diagnosis, a mechanic can use a fuel pressure gauge to test the rail pressure. The 2007 Charger should have around 55-60 psi at idle. Low pressure confirms a failing pump.
Fuel Pump Options for the 2007 Dodge Charger
When shopping for a replacement pump, you have several choices. The 2007 Charger uses different pump designs depending on the engine and whether it's the driver-side primary pump or passenger-side auxiliary pump. Here are the main categories:
1. Complete Fuel Pump Module Assembly
This is the most common and recommended option. It includes the fuel pump, fuel sending unit (fuel level sensor), strainer, and often the pressure sensor. It drops right into the tank. For the 2007-2015 models, you can find modules with and without pressure sensors. The part number 5136022AE is a common OEM reference for the primary pump.
2. Driver Side vs. Passenger Side Pump
The 2007 Charger has a saddle-style fuel tank with two pumps. The left driver side pump is the main pump with the sending unit. The right passenger side pump is an auxiliary pump that transfers fuel from the other side of the tank. Make sure you buy the correct side. The driver side pump is compatible with 2006-2010 and 2016 models, while the passenger side pump fits 2006-2018 models.
3. Performance vs. OEM Replacement
If you have a stock Charger, an OEM replacement pump is all you need. If you have added a supercharger or performance modifications, you may need a high-flow performance pump. For example, the Edelbrock supercharger kit for GM trucks uses a supplemental fuel pump kit, but for Dodge applications, a 340 LPH high-flow pump can support up to 600 BHP.
Step-by-Step Replacement Overview
Replacing the fuel pump on a 2007 Dodge Charger is a moderate DIY job. It requires dropping the fuel tank or accessing the pump through an access panel under the rear seat. Most 2007 models do not have an access panel, so dropping the tank is necessary. Here is a simplified overview:
1. Safety First
Work in a well-ventilated area. Disconnect the negative battery cable. Relieve fuel system pressure by removing the fuel pump fuse and cranking the engine for a few seconds. Keep a fire extinguisher nearby.
2. Drain the Fuel Tank
Siphon or drain as much fuel as possible. A full tank is very heavy and dangerous to drop.
3. Remove the Exhaust and Driveshaft
You will need to disconnect the exhaust pipes from the catalytic converters and remove the driveshaft to access the tank straps.
4. Lower the Fuel Tank
Support the tank with a jack, remove the retaining straps, and carefully lower it. Disconnect the fuel lines, electrical connector, and vapor hose.
5. Remove the Old Pump
The pump is held in the tank by a locking ring. Use a hammer and punch or a special tool to rotate the ring counterclockwise. Lift out the old pump assembly.
6. Install the New Pump
Transfer any necessary components (like the rubber gasket and pickup filter) from the old pump to the new one. Insert the new pump assembly, align the locking ring, and tighten it clockwise.
7. Reinstall Everything
Raise the tank back into position, reconnect the fuel lines and electrical connector, and reinstall the straps, driveshaft, and exhaust. Add a few gallons of fuel, reconnect the battery, and cycle the key a few times to prime the system before starting the engine.
How Long Does a Replacement Fuel Pump Last?
A quality aftermarket fuel pump should last 50,000 to 100,000 miles under normal driving conditions. The lifespan depends on fuel quality, driving habits, and how often you run the tank low on fuel. Running the tank consistently below a quarter tank can cause the pump to overheat, as it relies on fuel for cooling and lubrication.
Why You Should Replace the Fuel Filter and Relay at the Same Time
When replacing the fuel pump, it is highly recommended to also replace the fuel filter and the fuel pump relay. The filter can become clogged with debris from a failing pump, and the relay is a cheap component that can cause the same symptoms as a bad pump. Replacing all three at once ensures long-term reliability and saves you from future diagnostic headaches.
Recommended KEMSO Fuel Pump for Your 2007 Dodge Charger
For the best combination of performance, reliability, and value, we strongly recommend KEMSO fuel pumps. KEMSO is a US-based aftermarket fuel pump brand that has built a reputation for delivering high-quality, durable products. Unlike many cheap aftermarket pumps that lack quality control, every KEMSO pump is individually tested for flow and pressure performance.
KEMSO pumps are designed as direct OEM replacements, meaning they fit perfectly into your 2007 Dodge Charger's fuel tank without modifications. They deliver over 20% more flow than stock OEM pumps at 43 psi, which provides better fuel delivery for both daily driving and performance applications. They are compatible with both gasoline and E85 ethanol blends, giving you flexibility at the pump.
The best part? Every KEMSO fuel pump comes with a lifetime warranty. This is a significant advantage over most aftermarket brands that offer only 1-2 year coverage. KEMSO backs its products with USA-based customer support and a lifetime of confidence.
If you need a reliable replacement that will last for years, visit the official KEMSO website to find the perfect pump for your 2007 Dodge Charger:
KEMSO offers a wide selection of pumps for cars, trucks, motorcycles, ATVs, and UTVs, all backed by their lifetime warranty. Whether you need a standard OEM replacement or a high-performance 340 LPH pump for a modified engine, KEMSO has you covered. Their team is based in Houston, Texas, and you can reach them at support@kemsoracing.com for any compatibility questions.
Final Thoughts
A failing fuel pump in your 2007 Dodge Charger doesn't have to be a nightmare. Recognize the symptoms early—hard starting, stalling, whining noise, or loss of power—and replace the pump before it leaves you stranded. Always choose a quality aftermarket pump like KEMSO, which offers OEM-level performance, a lifetime warranty, and USA-based support. Replacing the pump yourself is a challenging but rewarding weekend project, or you can have a professional shop do it for around $600 to $1,200 in labor. No matter which route you choose, investing in a reliable fuel pump is essential for keeping your Charger running smoothly for years to come.
For the best fuel pump options with lifetime warranty and guaranteed performance, visit https://www.kemsoracing.com/ today.