Rajan Wilcox
If you're looking to remove the fuel injectors from your 1991 Chrysler New Yorker, there are a few things you should know. Firstly, it's important to routinely clean your fuel injectors to keep them in good condition. When removing the injectors, you can either disconnect the fuel feed line at the fuel filter or the fuel manifold. Additionally, you may need to remove the fuel tank from the car if the fuel pump needs to be replaced. It is also recommended to replace the fuel filter when working on the fuel injectors.
How to Remove Fuel Injectors from a 1991 Chrysler New Yorker
| Characteristics | Values |
|---|---|
| Fuel Injector Seals | Two lower seals, one soft rubber ring and one phenolic washer |
| Fuel Filter | Should be replaced when replacing the fuel injector |
| Fuel Feed Line | Disconnect at the fuel filter, not the fuel manifold |
| Fuel Tank | Must be removed to access the fuel pump |
| Fuel Filler Neck | Disconnect |
| Fuel Lines | Disconnect |
| Electrical Connector | Disconnect |
| Jack | Place under the tank to remove it |
| Straps | Remove to take out the tank |
| Lock Ring | Remove to access the sending unit |
| Fuel Rail | Remove the top fuel rail before disconnecting the electrical connectors |
| Injectors | Remove from the manifold individually |
| Clip | Use a small slot screwdriver to pop the clip to the "disengaged" position |
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What You'll Learn
Disconnect the fuel filler neck
Disconnecting the fuel filler neck is a crucial step in accessing the fuel tank and pump of your 1991 Chrysler New Yorker. Here is a detailed guide to help you through the process:
Begin by locating the fuel filler neck. It is typically found near the fuel tank, as it serves as the passage for fuel to enter the tank during refuelling. Once you have identified the fuel filler neck, proceed to the next step.
To disconnect the fuel filler neck, you will need to release any clamps or fasteners that secure it in place. Use appropriate tools, such as wrenches or screwdrivers, to loosen and remove these fasteners carefully. Be gentle to avoid damaging the components or the surrounding areas.
After removing the fasteners, carefully detach the fuel filler neck from its connection to the fuel tank. This process may vary depending on the specific design of your vehicle, but it typically involves a combination of lifting and wiggling motions to separate the neck from the tank. Ensure you are wearing appropriate safety gear, such as gloves and eye protection, during this step.
Once the fuel filler neck is disconnected, set it aside in a safe place. It is important to keep the area organised and ensure that the fuel filler neck does not come into contact with any contaminants. If there are any residual fuel droplets or leaks, address them promptly with appropriate absorbent materials.
By following these steps, you will have successfully disconnected the fuel filler neck, allowing you to proceed with further repairs or maintenance on your 1991 Chrysler New Yorker's fuel system. Remember to refer to your vehicle's repair manual for additional model-specific information and always exercise caution when working with fuel system components.
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Remove the fuel tank
To remove the fuel tank from a 1991 Chrysler New Yorker, follow these steps:
First, get under the car and locate the fuel tank. Next, you will need to disconnect the fuel filler neck, the fuel lines, and unplug the electrical connector. Once these are disconnected, get a jack and place it under the tank. Remove the straps holding the tank in place and lower the jack to access the top of the tank. Here, you will find the sending unit. Remove the lock ring holding the sending unit in place, and then remove it from the tank.
Now that the sending unit is removed, you can lift the fuel tank out of the car. Be careful when handling the fuel tank, as it is heavy and cumbersome. Place the tank on a secure surface or stand to continue working on it.
At this point, you will have access to the fuel pump, which is attached to the sending unit. If you need to replace the fuel pump, simply detach it from the sending unit. Remember to have a suitable replacement part ready if you are replacing any components.
Reinstalling the fuel tank and pump will involve reversing the steps outlined above. Ensure all connections are secure and properly tightened before refilling the fuel tank and starting the engine.
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Identify the injector's two lower seals
The OEM injectors use two lower seals. The top one is made of soft rubber and forms a seal. The bottom one is a phenolic washer that acts as a spacer to position the injector pintle nozzle correctly for fuel atomization. It also insulates the injector from engine block heat. The phenolic spacers on the fuel rail are made from the same material and serve the same purpose. When changing the seals, people often don't realize that the two rings are different because the rubber usually hardens and feels like the plastic washer. You only need to replace the rubber seals; the phenolic ones can be reused.
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Disconnect electrical connectors
Disconnecting the electrical connectors is a crucial step in removing fuel injectors from a 1991 Chrysler New Yorker. Here is a detailed guide on how to approach this task:
Begin by locating the fuel injectors. In most cars, the fuel injectors will be found on the engine, close to the fuel manifold or fuel filter. Once you have identified the fuel injectors, the next step is to disconnect the electrical connectors. This is a delicate process, and it is essential to proceed with caution to avoid any damage.
The electrical connectors are typically secured by clips or clamps. Using a small slot screwdriver, carefully insert it into the clip and gently pry it open. You will feel some resistance, but with a firm and steady motion, the clip should disengage. It is important to note that some vehicles may have multiple clips or different fastening mechanisms, so ensure you address all of them.
Once the clips are disengaged, carefully pull the electrical connectors away from the fuel injectors. It is recommended to use a gentle back-and-forth motion while pulling to avoid any sudden stress on the connectors. Ensure that you do not stretch or strain the wires attached to the connectors, as this could cause damage.
After disconnecting the electrical connectors, set them aside in a safe place where they will not be disturbed. It is a good idea to cover them with a cloth or place them in a protective container to prevent any accidental damage while you continue working on the fuel injectors.
By following these steps, you will successfully disconnect the electrical connectors from the fuel injectors of your 1991 Chrysler New Yorker. Remember to work carefully and methodically to avoid any damage to the electrical systems, and always refer to a qualified mechanic if you are unsure about any part of the process.
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Remove the fuel feed line at the fuel filter
To remove the fuel feed line at the fuel filter of your 1991 Chrysler New Yorker, you will need to follow a few steps. Firstly, it is recommended to remove the fuel feed line at the fuel filter and not on the fuel manifold. This will require you to remove the two cover plates on the right side of the forward valve cover.
By removing the fuel feed line at the fuel filter, you will have access to the fuel injectors for cleaning or replacement. It is also suggested to clean the injectors when changing the fuel filter. This process will involve disconnecting the line from the fuel filter and the support mounted under the two cover plates.
The fuel filter change process is demonstrated in a video by @Chris_Lum, which can provide a more detailed visual guide for this specific step. Additionally, it is worth noting that the fuel filter comes with crush washers on the end of the feed line.
Overall, by carefully following these steps, you can successfully remove the fuel feed line at the fuel filter of your 1991 Chrysler New Yorker and perform necessary maintenance on the fuel injectors and fuel filter.
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