Ameer Randolph
Replacing the fuel pump on a 2001 Chevy Suburban is a moderately complicated job. The fuel pump is located in the fuel tank and is integral with the fuel sending unit assembly. To replace it, you must first raise and support the vehicle, disconnect the fuel lines and electrical connections, and remove the fuel tank. You can then remove the fuel sending unit assembly retaining ring or cam lock ring and lift the fuel sending unit assembly from the fuel tank.
| Characteristics | Values |
|---|---|
| Fuel pump location | In the fuel tank |
| Fuel pump replacement | Must be replaced with the fuel sending unit as an assembly |
| Vehicle preparation | Raise and support vehicle |
| Connections | Disconnect fuel lines and electrical connections at the fuel tank |
| Removal | Remove fuel tank, retaining ring or cam lock ring, and lift fuel sending unit assembly from the fuel tank |
| Installation | Reverse the removal procedure using a new "O" ring |
| Tools | Long flat-head screwdriver, hammer, line disconnection tools, drill bit, metal cutting bit, jigsaw |
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What You'll Learn
Removing the fuel tank
- Raise and support the vehicle.
- Disconnect the fuel lines and electrical connections at the fuel tank.
- Remove the fuel tank.
- Remove the fuel sending unit assembly retaining ring or cam lock ring. You may need to use a long flat-head screwdriver and a hammer to release the ring lock.
- Lift the fuel sending unit assembly from the fuel tank.
It is important to note that you should never use power tools when working on a fuel tank, as sparks can cause an explosion. Always use hand tools and be very careful not to damage the tank or any fuel lines.
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Disconnecting the fuel lines and electrical connections
To disconnect the fuel lines and electrical connections of a 2001 Chevy Suburban, you must first raise and support the vehicle. Then, disconnect the fuel lines and electrical connections at the fuel tank. You can use line disconnection tools to remove the lines, and a screwdriver and hammer to release the ring lock to release the fuel pump from the tank. You can then unplug the electrical connection.
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Removing the fuel sending unit assembly retaining ring or cam lock ring
To remove the fuel sending unit assembly retaining ring or cam lock ring, you must first raise and support the vehicle. Disconnect the fuel lines and electrical connections at the fuel tank. Remove the fuel tank and then remove the fuel sending unit assembly retaining ring or cam lock ring. Lift the fuel sending unit assembly from the fuel tank.
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Cutting into the rubber flooring and insulation
To replace the fuel pump on a 2001 Suburban, you will need to cut into the rubber flooring and insulation for sound deadening. First, take out the back seat to give yourself more room to work. Then, measure where the fuel pump is located underneath so you don't cut too big of a hole. Use a drill bit to make starter holes in the four corners, then use a metal-cutting bit on a jigsaw to cut out the hole. Make sure not to cut too deep, as you could hit the tank, the frame, or the fuel lines.
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Connecting the new pump to the Suburban's harness
To connect the new pump to the Suburban's harness, you will need to use the new wire connection that comes with the pump. You can then connect it to the fuel pump.
To get to the fuel tank and pump, you will need to raise and support the vehicle. Disconnect the fuel lines and electrical connections at the fuel tank. Remove the fuel tank and the fuel sending unit assembly retaining ring or cam lock ring. You can use a long flat-head screwdriver and a hammer to release the ring lock.
Once you have removed the old pump, you can install the new one by reversing the removal procedure. Make sure to use a new "O" ring.
If you are still having trouble getting the Suburban to start, you can try adding some primary wire to the old fuel pump connection. Connect the positive and ground wire to a spare battery and then hook this connection to the new pump in the tank.
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Frequently asked questions
The fuel pump is located in the fuel tank and is integral with the fuel sending unit assembly. You will need to raise and support the vehicle, disconnect the fuel lines and electrical connections at the fuel tank, and remove the fuel tank.
You will need to remove the fuel sending unit assembly retaining ring or cam lock ring. You can do this with a long flat-head screwdriver and a hammer.
A mechanic will need to get to the failed pump through the top of the fuel tank via an access panel in the passenger compartment or by removing the tank from the vehicle.
You can use a drill bit and a metal-cutting bit on a jigsaw, as these tools will not cause a spark and will not go too deep to hit the tank or the frame or your fuel lines.
