Rajan Wilcox
Replacing the fuel pump on a 2003 Lincoln Town Car is a complex process that requires careful attention to detail. The fuel tank must be depressurised and drained, and the fuel supply, return, and vent connections must be made correctly. The fuel tank straps must be brought around the tank and the retaining nut or bolt started, with the tank aligned with the straps. It is important to ensure that the hoses and wiring mounted on the tank top are correctly routed and will not be pinched between the tank and body. The fuel tank strap retaining nuts or bolts should then be tightened to 20-30 ft. lbs. (28-40 Nm). The fuel hoses and lines, as well as the sending unit electrical connector, should then be connected if they were not already. Finally, the fuel that was drained from the tank should be replaced, and all connections should be checked for leaks.
| Characteristics | Values |
|---|---|
| Fuel supply, fuel return, and vapor vent connections | Ensure they are made correctly |
| Sending unit electrical connector | Connect if not already |
| Fuel tank | Lower the vehicle, clean the mounting surface, and ensure it is not deformed |
| Fuel tank straps | Bring them around the tank and start the retaining nut or bolt |
| Fuel tank shields | Ensure they are installed with the straps and positioned correctly on the tank |
| Hoses and wiring | Check they are correctly routed and will not be pinched between the tank and body |
| Fuel tank strap retaining nuts or bolts | Tighten to 20-30 ft. lbs. (28-40 Nm) |
| Fuel hoses and lines | Connect if they were detached |
| Fuel system | Depressurize |
| Fuel | Remove from the tank by pumping out through the filler |
| Supply line and return line fittings | Disconnect |
| Vent line | Disconnect at the RH and LH side rear axle frame kick-ups |
| Fuel sender electrical connector | Disconnect forward of the tank |
| Filler neck ring clamp screws | Remove |
| Fuel tank support straps | Remove |
| Fuel line | Disconnect (you’ll need a fuel line disconnect tool) |
| Wiring harness | Disconnect |
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What You'll Learn
Depressurise the fuel system and remove the fuel from the tank
To replace the fuel pump in a 2003 Lincoln Town Car, you will need to depressurise the fuel system and remove the fuel from the tank.
First, you need to pump out the fuel from the tank through the filler. Be careful not to deform the tank. Bring the fuel tank straps around the tank and start the retaining nut or bolt. Align the tank with the straps. If equipped, make sure the fuel tank shields are installed with the straps and are positioned correctly on the tank. Check the hoses and wiring mounted on the tank top to make sure they are correctly routed and will not be pinched between the tank and body. Tighten the fuel tank strap retaining nuts or bolts to 20-30 ft. lbs. (28-40 Nm).
Next, disconnect the supply line and return line fittings and vent line at the RH and LH side rear axle frame kick-ups. Disconnect the fuel sender electrical connector forward of the tank. Remove the filler neck ring clamp screws. Remove the fuel tank support straps and remove the fuel tank.
Finally, disconnect the fuel line (you will need a fuel line disconnect tool) and disconnect the wiring harness.
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Disconnect the supply line, return line fittings and vent line
To disconnect the supply line, return line fittings and vent line, you will need to depressurise the fuel system. Remove the fuel from the fuel tank by pumping it out through the filler. Disconnect the supply line, return line fittings and vent line at the RH and LH side rear axle frame kick-ups. You will need a fuel line disconnect tool for this.
Make sure the fuel supply, fuel return, if present, and vapor vent connections are made correctly. If not already connected, connect the sending unit electrical connector. Lower the vehicle. Replace the fuel that was drained from the tank. Check all connections for leaks.
Before disconnecting the supply line, return line fittings and vent line, make sure the fuel tank straps are brought around the tank and the retaining nut or bolt is started. Align the tank with the straps. If equipped, make sure the fuel tank shields are installed with the straps and are positioned correctly on the tank. Check the hoses and wiring mounted on the tank top to make sure they are correctly routed and will not be pinched between the tank and body. Tighten the fuel tank strap retaining nuts or bolts to 20-30 ft. lbs. (28-40 Nm).
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Disconnect the fuel sender electrical connector
To disconnect the fuel sender electrical connector on a 2003 Lincoln Town Car, you will need to depressurise the fuel system and remove the fuel from the fuel tank by pumping it out through the filler. You will then need to disconnect the supply line and return line fittings and vent line at the RH and LH side rear axle frame kick-ups.
Next, disconnect the fuel sender electrical connector forward of the tank. Be careful not to deform the tank. Bring the fuel tank straps around the tank and start the retaining nut or bolt. Align the tank with the straps. If equipped, make sure the fuel tank shields are installed with the straps and are positioned correctly on the tank.
Check the hoses and wiring mounted on the tank top to make sure they are correctly routed and will not be pinched between the tank and body. Tighten the fuel tank strap retaining nuts or bolts to 20-30 ft. lbs. (28-40 Nm). If not already connected, connect the fuel hoses and lines which were detached, as well as the sending unit electrical connector.
Finally, lower the vehicle and replace the fuel that was drained from the tank. Check all connections for leaks. If you are not confident in your ability to replace the fuel pump, it is recommended that you take your car to a service centre that works on Lincoln vehicles.
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Remove the filler neck ring clamp screws
To remove the filler neck ring clamp screws, you will need to depressurise the fuel system and remove the fuel from the fuel tank by pumping it out through the filler. You will then need to disconnect the supply line and return line fittings and vent line at the RH and LH side rear axle frame kick-ups.
Next, disconnect the fuel sender electrical connector forward of the tank. You can then remove the filler neck ring clamp screws.
Be sure to disconnect the fuel line (you will need a fuel line disconnect tool) and disconnect the wiring harness.
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Remove the fuel tank support straps and the fuel tank
To remove the fuel tank support straps and the fuel tank, you must first depressurise the fuel system. Remove the fuel from the fuel tank by pumping it out through the filler. Disconnect the supply line and return line fittings and vent line at the RH and LH side rear axle frame kick-ups. Disconnect the fuel sender electrical connector forward of the tank. Remove the filler neck ring clamp screws.
Now you can remove the fuel tank support straps and the fuel tank. Bring the fuel tank straps around the tank and start the retaining nut or bolt. Align the tank with the straps. Make sure the fuel tank shields are installed with the straps and are positioned correctly on the tank. Check the hoses and wiring mounted on the tank top to make sure they are correctly routed and will not be pinched between the tank and body. Tighten the fuel tank strap retaining nuts or bolts to 20-30 ft. lbs. (28-40 Nm).
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Frequently asked questions
First, depressurise the fuel system and remove the fuel from the fuel tank. Disconnect the supply line and return line fittings and vent line at the RH and LH side rear axle frame kick-ups. Disconnect the fuel sender electrical connector forward of the tank and remove the filler neck ring clamp screws. Remove the fuel tank support straps and the fuel tank. Disconnect the fuel line (you’ll need a fuel line disconnect tool) and disconnect the wiring harness. Bring the fuel tank straps around the tank and start the retaining nut or bolt. Align the tank with the straps. If equipped, make sure the fuel tank shields are installed with the straps and are positioned correctly on the tank. Check the hoses and wiring mounted on the tank top to make sure they are correctly routed and will not be pinched between the tank and body. Tighten the fuel tank strap retaining nuts or bolts to 20-30 ft. lbs. (28-40 Nm). If not already connected, connect the fuel hoses and lines which were detached, the sending unit electrical connector and the fuel supply, fuel return, and vapor vent connections. Lower the vehicle. Replace the fuel that was drained from the tank. Check all connections for leaks.
If your name is MacGyver, you might have a chance of fixing a bad fuel pump. Even if you do have the know-how and materials to fix it, it might just be a temporary fix. You’ll probably need to replace it in the near future anyway. The best course of action would be to take your car to a service centre that works on Lincoln vehicles and have them diagnose the problem.
A fuel pump’s job is pretty self-explanatory: it pumps fuel to the engine of your Lincoln. If your car is not receiving fuel, it may be due to a faulty fuel pump. However, it could be due to another issue, so it is best to take your car to a service centre that works on Lincoln vehicles and have them diagnose the problem.
