Replacing The Fuel Pump On A 91 Town Car

Replacing the fuel pump in a 91 Lincoln Town Car is a complex but manageable task. It is important to note that the fuel pump is difficult to access, and working with fuel can be dangerous, so caution is advised. Before beginning, ensure the suspension switch in the trunk is turned off, and do not jack the vehicle with the suspension on as this may damage the air bags. The process involves jacking up the car, draining the gas tank, disconnecting the fuel inlet line, removing the old fuel pump, and installing a new one. It is also recommended to replace the fuel filter and clean the gas tank during this process.

Drain the gas tank

To drain the gas tank of your 91 Town Car, you will need to locate the suspension switch in the trunk of the car on the left side. Turn the switch to the "off" position. This is important as jacking the vehicle up with the suspension on can cause tears in your air bags.

Next, jack up the rear of the car. You will then need to drain the gas from the tank. Look closely, and you will see a plug from which to drain the fuel. Place a container underneath to catch the drained fuel.

Once the tank is empty, you can proceed to remove the fuel pump. You may need to loosen the straps holding the tank and let it drop down. The tank is not heavy if you emptied it.

Disconnect the fuel inlet line

To disconnect the fuel inlet line of your 91 Lincoln Town Car, you will need to follow these steps:

Locate the suspension switch in the trunk of your car on the left side. It is important to turn this switch to the "off" position before proceeding. This is because jacking the vehicle up with the suspension on can cause tears in your air bags.

Next, jack up the rear of the car and drain the gas from the tank. You will see a plug from which you can drain the fuel. Remember to place a jack or a tall cinder block under the tank to support it as you lower it.

Now, undo the fuel inlet line where it connects to the top portion of the tank. It is secured with a hose clamp, so you will need to unscrew this hose clamp from the tank. Once the hose clamp is removed, the fuel inlet line will slide right off.

At this point, you can lay the tank on the ground and disconnect any lines running into the cap. You may need a hammer and a screwdriver to do this. Pull the cap straight up and out, turning the assembly at an angle as you do so since the fuel sending unit is attached.

These steps provide a detailed and direct guide to disconnecting the fuel inlet line of your 91 Lincoln Town Car. It is important to exercise caution when working with fuel and to use jacks to help raise and lower the tank, as it can be heavy and place you in an awkward position.

Remove the old fuel pump

To remove the old fuel pump from your 91 Lincoln Town Car, you will first need to empty the fuel tank as much as possible. You will then need to jack up the rear of the car and locate the suspension switch in the trunk on the left side. Turn this switch to the "off" position.

Now, slide under the rear of the car and locate the fuel pump. Unplug any connections you see going to the fuel pump, and unbolt it. You may need to loosen the straps holding the tank and let it drop down.

Once the tank is lowered, pull out the old pump. You might need to turn the assembly at an angle to remove it, as the fuel sending unit is attached. The fuel pump and sending unit are attached together on the assembly that is submerged in the tank.

Install the new fuel pump

Now that you have removed the old fuel pump, it's time to install the new one.

First, you will need to slide the new pump slowly into the tank. Next, bolt the new pump into place, using a new gasket. Tighten the straps to secure the pump.

Now, plug in the connections. You will need to add gas and prime the engine by turning the key to the "on" position a few times. You should hear the pump buzzing each time you turn the key.

Finally, crank the engine. It is also a good idea to change the fuel inline filter before you refill the tank with gas. Be careful with the plastic clips that hold the gas filter in place, as they tend to be fragile.

Reattach the fuel inlet line

To reattach the fuel inlet line on your 1991 Lincoln Town Car, follow these steps:

Firstly, ensure that the new fuel pump is securely in place. The fuel inlet line connects to the top portion of the fuel tank and is held in place by a hose clamp. Position the fuel inlet line so that it aligns with the fuel tank and the hose clamp.

Next, attach the hose clamp to the fuel tank. You may need to use a screwdriver to tighten the hose clamp securely. Ensure that the hose clamp is attached correctly and is not loose, as this could cause fuel leakage.

Once the hose clamp is in place, slide the fuel inlet line onto the fuel tank. It should fit snugly and securely. Check that the fuel inlet line is not twisted or kinked, as this could restrict fuel flow.

Now, reconnect any electrical lines and hoses to the fuel pump. There should be two electrical lines and two small hoses that attach to the top of the fuel pump. These should be quick-connect fittings that snap into place. Ensure that all connections are secure and that there are no leaks.

Finally, lower the fuel tank back into place and secure it with the bands and bolts. Ensure that the fuel inlet hose from the gas cap is also tightened back into place. With everything securely connected, you can now start the car. Remember to turn the suspension back on and press the cut-off switch, located in the trunk behind the left hinge, if the car does not start.

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