1999 Taurus Fuel Pump Replacement: Complete Guide to Symptoms, Costs, and DIY Repair
If you own a 1999 Ford Taurus and your engine is sputtering, taking longer to start, or refusing to start at all, the fuel pump is a likely suspect. Replacing a fuel pump on a 1999 Ford Taurus at a professional shop typically costs between $500 and $1,000, but you can save up to $650-900 in labor by doing the job yourself. The fuel pump in this vehicle is located inside the fuel tank, and while the job requires some mechanical skill, it is a manageable DIY project for most home mechanics. This guide covers everything you need to know about diagnosing a failing fuel pump, the replacement process, and choosing the right replacement part for your 1999 Ford Taurus.
Signs Your 1999 Ford Taurus Fuel Pump is Failing
The fuel pump in your 1999 Ford Taurus is responsible for pushing fuel from the tank to the engine. When it starts to fail, you will notice several distinct symptoms. The most common warning signs include:
1. Engine Sputtering at High Speeds
If your fuel pump is not functioning correctly, you may notice the engine sputtering or choking, especially when driving at highway speeds. This happens because the pump cannot deliver a consistent flow of fuel to the engine. The engine may cut out for brief periods before returning to normal operation .
2. Loss of Power During Acceleration
A properly functioning fuel pump must keep up with the engine's demand for fuel when you step on the gas pedal. If the pump is failing, you will feel a sudden loss of power when trying to accelerate, particularly when going uphill or merging onto a highway. This power loss is usually temporary but becomes more severe as the pump continues to deteriorate .
3. Long Cranking Time and Hard Starting
Your car may take longer to start, requiring you to crank the engine multiple times before it finally fires up. In some cases, the engine may crank normally but refuse to start at all. A good way to check this is to listen for the fuel pump's priming sound when you turn the key to the "ON" position. If you do not hear a buzzing sound from the rear of the vehicle for about two seconds, the pump may not be working .
4. Whining Noise from the Fuel Tank Area
A failing electric fuel pump often makes a distinct whining or buzzing sound coming from the fuel tank area. While all fuel pumps make some noise, a loud, high-pitched whine that gets worse over time is a clear warning sign that the pump is wearing out .
5. Stalling and Restarting Issues
Your Taurus may stall unexpectedly, especially at higher speeds, and then restart after sitting for several minutes. This is caused by low fuel pressure that builds up again when the vehicle is stationary. If you find your car stalling while driving, the fuel pump is a prime suspect .
6. Reduced Fuel Efficiency
A less efficient fuel pump that is delivering inconsistent pressure can cause a noticeable decrease in your car's fuel mileage. If you are filling up more often than usual, a failing fuel pump could be the culprit .
7. Engine Surging
An inconsistent fuel flow from a weak pump can cause the vehicle to surge unexpectedly. You may feel the car suddenly accelerate or decelerate without any change in throttle position .
What Else Could Be Causing These Symptoms?
Before you rush to replace the fuel pump, it is important to rule out other potential causes that can mimic a failing fuel pump. These problems are often easier and cheaper to fix :
Clogged Fuel Filter: A restricted fuel filter can prevent the pump from supplying enough fuel to the engine, causing power loss, sputtering, and stalling. This is a common maintenance item that should be replaced regularly.
Faulty Fuel Pump Relay: The fuel pump relay controls the power supply to the pump. A faulty relay may cause intermittent power loss, preventing the pump from operating correctly. You can test the relay by swapping it with a similar relay in the fuse box.
Bad Fuel Injectors: Dirty or failing injectors can lead to misfires and rough running, mimicking a lack of fuel delivery.
Faulty Fuel Pressure Regulator: This component controls fuel pressure. If it fails, it can cause too much or too little fuel to reach the engine, creating similar symptoms to a failing pump.
Electrical Issues: Problems with the fuel pump fuse, wiring, or connector can prevent the pump from operating. Check for voltage at the pump harness with a multimeter.
Vacuum Leaks: Leaks in the intake manifold or vacuum lines can cause unmetered air to enter the engine, leading to a lean condition that feels like a lack of fuel .
How to Test the Fuel Pump on Your 1999 Ford Taurus
The best way to confirm a failing fuel pump is to test the fuel pressure. The 1999 Ford Taurus with the 3.0L V6 engine is equipped with a Schrader valve on the fuel rail, making it easy to connect a fuel pressure test gauge .
Fuel Pressure Specifications: For the 1999 Ford Taurus 3.0L V6, the fuel pressure should be between 30-45 PSI with the engine running and between 35-45 PSI with the key on and engine off. If the pressure is below 30 PSI, the fuel pump is likely failing .
Quick Test Using Starting Fluid: If your engine cranks but will not start, you can spray starting fluid into the intake. If the engine briefly fires and runs, then dies, you have confirmed a lack of fuel problem. This tells you the issue is likely the fuel pump, relay, or filter .
1999 Ford Taurus Fuel Pump Replacement Cost
The total cost for a fuel pump replacement on a 1999 Ford Taurus varies depending on whether you do the job yourself or hire a professional.
Professional Replacement Cost: The average national cost for a fuel pump replacement across all vehicles ranges from roughly $611 to $894, including parts and labor . For a 1999 Ford Taurus, you can expect to pay between $500 and $1,000 at a shop, with labor typically accounting for 2-3 hours of shop time.
DIY Cost: If you do the job yourself, you only need to pay for the fuel pump part. A quality aftermarket fuel pump for the 1999 Ford Taurus costs between $50 and $80. By choosing a high-quality pump and doing the work yourself, you can save significantly on labor costs.
Parts Cost Breakdown: The fuel pump part itself from brands like KEMSO or other aftermarket manufacturers ranges from $59.98 to $79.98. You may also need a new fuel filter, which costs about $10-15, and a fuel pump strainer, which costs about $5-10.
DIY Fuel Pump Replacement Steps for 1999 Ford Taurus
Replacing the fuel pump on a 1999 Ford Taurus is a straightforward job that can be done in a driveway with basic tools. The pump is accessed through an access panel under the rear seat or by lowering the fuel tank.
Tools You Will Need:
- Socket set with extensions
- Flathead screwdriver
- Fuel line disconnect tool
- Safety glasses
- Jack and jack stands
- Drain pan
- New fuel pump assembly
Step 1: Relieve Fuel System Pressure
Locate the fuel pump fuse or relay in the fuse box and remove it. Start the engine and let it run until it stalls. This relieves the pressure in the fuel lines. Crank the engine a few more times to ensure all pressure is gone.
Step 2: Disconnect the Battery
Disconnect the negative battery terminal to prevent any electrical shorts or accidental sparks while working on the fuel system.
Step 3: Access the Fuel Pump
On the 1999 Ford Taurus, the fuel pump is located inside the fuel tank. You can access it by removing the rear seat cushion and finding the access panel on the floor pan. If there is no access panel, you will need to lower the fuel tank from under the vehicle.
Step 4: Remove the Old Fuel Pump
Disconnect the electrical connector and fuel lines from the pump assembly. Use a fuel line disconnect tool to release the quick-connect fittings. Remove the retaining ring or bolts holding the pump assembly in place. Carefully lift the pump assembly out of the tank, noting the orientation of the float arm.
Step 5: Install the New Fuel Pump
Transfer the fuel pump strainer and any mounting brackets from the old pump to the new pump. Place the new pump assembly into the tank in the same position as the old one. Secure the retaining ring or bolts. Reconnect the fuel lines and electrical connector.
Step 6: Test the Installation
Reconnect the battery and reinstall the fuel pump fuse or relay. Turn the key to the "ON" position and listen for the fuel pump to prime. Check for any fuel leaks at the connections. Start the engine and let it run for a few minutes. Verify that the engine runs smoothly and that there are no leaks.
Common Mistakes to Avoid When Replacing Your Fuel Pump
Running the Tank Low on Fuel: Running your fuel tank below 1/4 full regularly can cause the fuel pump to overheat and fail prematurely. The fuel in the tank helps cool and lubricate the pump .
Using Cheap Replacement Parts: Do not cut corners with a cheap replacement pump that could fail in a few months. The labor cost is the same whether you install a quality pump or a cheap one, so invest in a reliable product .
Forgetting to Replace the Fuel Filter: When replacing the fuel pump, it is a good practice to also replace the fuel filter. A clogged filter can cause the new pump to work harder and fail sooner.
Not Cleaning the Fuel Tank: If there is debris or sediment in the bottom of the fuel tank, it can clog the new pump's strainer. Take the time to clean the inside of the tank while it is accessible.
Ignoring Electrical Issues: Check the fuel pump relay, fuse, and wiring before installing the new pump. If there is an electrical problem, the new pump may not work properly either.
How to Extend the Life of Your New Fuel Pump
Once you have replaced the fuel pump, you can take steps to ensure it lasts as long as possible:
Keep the Fuel Tank at Least 1/4 Full: This ensures the pump stays cool and lubricated. Running the tank low regularly is the number one cause of premature fuel pump failure .
Use Quality Fuel: Purchase fuel from reputable gas stations. Low-quality fuel can contain contaminants that damage the pump and clog the fuel filter.
Replace the Fuel Filter Regularly: Follow the manufacturer's maintenance schedule for fuel filter replacement. A clean filter reduces strain on the fuel pump.
Address Electrical Issues Promptly: Voltage fluctuations can damage the pump motor. If you notice dimming lights or other electrical issues, have them checked out.
Why Choose KEMSO for Your 1999 Ford Taurus Fuel Pump Replacement
When it comes to replacing the fuel pump on your 1999 Ford Taurus, you want a part that is reliable, fits perfectly, and won't let you down. KEMSO fuel pumps are built as direct OEM replacements, meaning they will fit your 1999 Ford Taurus perfectly without any modifications. Each KEMSO fuel pump is engineered for durability and consistent fuel delivery, ensuring your engine runs smoothly under all conditions.
KEMSO fuel pumps are high-performance components that support up to 600 BHP in naturally aspirated, turbocharged, and supercharged applications. They are designed for both gasoline and E85 fuels, offering flexibility if you ever decide to modify your engine. The bypass valve is set at 125.8 PSI, which is higher than standard OEM pumps, ensuring consistent pressure even under heavy load.
What truly sets KEMSO apart is their confidence in their products. Every KEMSO fuel pump comes with a lifetime warranty. If the pump ever fails, KEMSO will replace it at no cost. This level of warranty is virtually unheard of in the automotive parts industry and speaks volumes about the quality of their manufacturing. KEMSO's customer support is USA-based and provided by USA technicians, so you can get help if you need it.
To browse the complete selection of fuel pumps for your 1999 Ford Taurus and other vehicles, visit the KEMSO official website at: https://www.kemsoracing.com/