Sylvie Willis
The 1999 Ford F150 has three fuel tank pressure sensors: two grey and one black. The black sensor is the most expensive, costing around $98 to replace. The sensors can be removed by cleaning around them, spraying them with WD-40, pushing down, and turning them a quarter turn counterclockwise. Additionally, there are two fuel pressure sensors in the Ford F150: one above the fuel tank that measures the low-pressure fuel pump, and the other attached to the fuel rail at the back of the engine, which measures the fuel pressure at the fuel rails.
| Characteristics | Values |
|---|---|
| Number of sensors | 3 |
| Colors | 2 grey, 1 black |
| Cost of replacement | $85.99 to $98 |
| Time to replace | 2-3 hours |
| Fuel pressure sensor locations | Above the fuel tank, attached to the fuel rail at the back of the engine |
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What You'll Learn
The sensors are expensive to replace, especially the black one
The sensors on a 99 F150 fuel tank are not all equally priced. The black sensor is particularly expensive to replace, costing around $98, whereas the two grey sensors are cheaper. The replacement cost for fuel tank pressure sensors varies, with parts priced between $131 and $133, and labor costs estimated to be between $191 and $280. This can be influenced by the make and model of the vehicle, with higher-end vehicles typically having more expensive parts.
The location of the sensor can also impact the cost of replacement. If the sensor is in a difficult-to-access place, such as the charcoal canister, labor costs may increase. In addition, if diagnostic testing is required, auto repair shops may charge an extra fee, typically ranging from $50 to $100.
It is important to note that the fuel tank pressure sensor is a critical component of the EVAP system, which captures and controls fuel vapors. If the sensor malfunctions, it can fail to detect vapor leaks, causing the vehicle to fail emissions tests. While it is possible to drive with a faulty sensor, it is not recommended as it can lead to engine performance issues and potentially more expensive repairs.
Given the complexity of the replacement process and the potential fire hazards associated with working with fuel, it is generally advised to leave the job to a professional technician.
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The sensors can be removed by spraying WD-40, pushing down, and turning counter-clockwise
The 1999 Ford F-150 fuel tank has three sensors on top of it: two grey and one black. The black sensor is expensive to replace, costing around $98. To remove these sensors, it is recommended to clean around them and spray them with WD-40 or a similar product. After spraying, push down on the sensors while slowly turning them counter-clockwise. It is important to push down and turn simultaneously. The sensors will only turn a quarter turn before they can be lifted out.
When working on your vehicle, it is important to prioritize safety. Wear safety glasses to protect your eyes from dirt and falling rust. Additionally, be cautious when working with chemicals like WD-40. While it can be used to clean fuel systems and injectors, some people advise against putting it in the fuel tank due to potential compatibility issues with plastics and other components.
Before attempting any repairs or replacements, it is recommended to consult a qualified mechanic or a trusted source for specific instructions and safety precautions.
Some online forums and discussions provide insights into removing sensors and other components. For example, one forum user shared their experience replacing the fuel tank on their 1998 F150, mentioning the use of a skid plate and the need to disconnect electrical connections. Another user inquired about the location of the fuel pressure sensor and received responses indicating that there are typically two fuel pressure sensors: one above the fuel tank and the other attached to the fuel rail at the back of the engine.
It is important to note that the information provided in online forums may vary in accuracy and reliability. Always refer to official sources or seek professional advice for critical repairs and maintenance.
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The fuel tank must be lowered to access the sensors
To access the sensors on a 1999 Ford F-150 fuel tank, the tank must be lowered. This is because the sensors are located on the top of the fuel tank.
Firstly, it is important to ensure safety precautions are taken. Wear safety glasses to protect your eyes from any dirt and rust that may fall when working under the truck.
Before beginning, it is recommended to spray penetrating fluid on the tank strap bolts the night before to help loosen them. There are two electrical connections that must be disconnected. The first is the electrical connector that goes to the fuel pump. The other is the coupler, which can be found by following the cable from the pump.
Once everything is disconnected, slowly release the blue straps and carefully lower the tank. Now, the sensors can be accessed. There are three sensors: two grey and one black. The black sensor is particularly expensive to replace if it breaks, so take care when removing it. To remove the sensors, clean around them and spray with WD-40 or a similar product. Push down and slowly turn them counter-clockwise. They will only turn a quarter turn before they lift out.
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There are two grey sensors and one black sensor
The 1999 F150 has three fuel tank pressure sensors on the top of the tank: two grey and one black. The black sensor is expensive to replace, costing around $98, so it is important to be careful when removing it. To remove the sensors, clean around them and spray them with WD-40 or a similar product. Then, push down and turn them a quarter turn counterclockwise, and they should come out. When reinstalling them, they can only go in one way.
There are also two fuel pressure sensors in the Ford F150. One sensor is above the fuel tank and measures the low-pressure fuel pump, while the other is attached to the fuel rail at the back of the engine and measures the fuel pressure at the fuel rails.
It takes approximately two to three hours to replace a fuel tank pressure sensor, and the fuel tank must be dropped down first to access the sensor.
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The sensors are located on top of the fuel tank
The 1999 F150 has three sensors located on top of the fuel tank. Two of these sensors are grey, while one is black. The black sensor is particularly expensive, costing around $98 to replace if broken.
To remove the sensors, it is recommended that you spray them with WD-40 and let the solution sit for a few minutes. Then, while pushing down, slowly turn the sensors counter-clockwise. They only turn a quarter turn and then they should lift out. When reinstalling the sensors, they can only go in one way.
The fuel tank pressure sensor connector on the 1999 F150 is prone to issues. In some cases, the connector may be completely gone. If you are experiencing problems with your fuel tank pressure sensor, a Ford Mechanic should be able to help.
In addition to the fuel tank pressure sensor, there is also a fuel pressure sensor above the fuel tank that measures the low-pressure fuel pump. There is another fuel pressure sensor attached to the fuel rail at the back of the engine, which measures fuel pressure at the fuel rails. These sensors are only present on direct-injected engines with two fuel pumps.
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Frequently asked questions
One sensor measures the low-pressure fuel pump, another measures the fuel pressure at the fuel rails, and the third sensor sends a signal and has nothing to do with the pressure itself.
Two fuel pressure sensors are present. One is above the fuel tank, and the other is attached to the fuel rail at the back of the engine. The third sensor is the fuel tank pressure sensor connector.
Spray WD-40 or a similar product around the sensors and let it sit for a few minutes. While pushing down, slowly start to turn them counterclockwise. They only turn a quarter turn and then they should lift out.
It takes approximately two to three hours to replace the sensors with all the necessary equipment.
