Mercedes Mullins
Installing a fuel tank float in a 1998 Isuzu Rodeo requires careful attention to safety and a methodical approach. The process begins by accessing the fuel tank, which is located under the vehicle, and disconnecting the straps that secure it in place. With the tank stabilized, it can be carefully lowered and removed, revealing the fuel pump and gas gauge float assembly. This assembly may be replaced as a complete unit, or an individual fuel pump can be installed. The locking ring must be removed with non-sparking tools, such as a brass hammer and punch, to avoid any potential hazards. Reinstallation involves reversing the steps, ensuring that the sock over the fuel pump pickup is in place.
Characteristics and Values
| Characteristics | Values |
|---|---|
| Tools | Floor jack, brass hammer, brass punch, two wrenches, gloves, plastic cup |
| Steps | Disconnect the 2 straps that support the fuel tank, lower the tank, remove the locking ring, remove the fuel pump and gas gauge float assembly, install the new pump, reverse the steps to reinstall the fuel tank |
| Time | Shouldn't take more than 25 minutes |
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What You'll Learn
Disconnect the fuel tank straps and stabilise the tank
Disconnecting the fuel tank straps and stabilising the tank is a crucial step in installing a fuel tank float in a 1998 Isuzu Rodeo. Here is a detailed guide on how to approach this task:
Firstly, locate the fuel tank straps. These are the two straps that support and secure the fuel tank in place. They will need to be carefully disconnected to release the tank. Before beginning this process, ensure you have the necessary tools and safety equipment, including gloves and eye protection.
Now, to stabilise the tank, you will need the assistance of a floor jack and possibly a friend. Raise the Isuzu Rodeo with the jack positioned near the rear driver's side wheel. This will provide access to the fuel tank and ensure stability during the process. Place a jack stand under the vehicle for added safety and support. It is important to follow proper jacking procedures and ensure the vehicle is securely lifted and stabilised before proceeding.
With the vehicle securely raised, you can now focus on disconnecting the fuel tank straps. Use the appropriate tools to carefully detach the straps from the fuel tank. Work slowly and deliberately to avoid any accidental damage to surrounding components. Ensure that the fuel tank is adequately supported as you work, either by yourself or with the assistance of your helper.
Once the straps are disconnected, the fuel tank will be free and ready for the next steps of the installation process. Remember to proceed with caution and refer to relevant manuals or guides if you are unsure about any aspects of the procedure. Always prioritise safety when working with automotive systems, especially those involving the fuel system.
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Remove the locking ring with non-sparking tools
To remove the locking ring with non-sparking tools, you will need a brass hammer and brass punch. This is an important step as it will allow you to access the fuel pump and gas gauge float assembly. Here is a step-by-step guide on how to do it:
First, locate the locking ring on top of the fuel tank. Identify the notch on the locking ring. Using a blunt object, such as a flathead screwdriver, insert it into the notch and gently pry the free end of the ring out radially and upward. You can also use a specialized removal tool, such as the Smalley Spirolox Retaining Ring Removal Tool, which is designed to fit between the layers of a multiple-turn retaining ring to access the removal notch easily.
If you are unable to find a suitable notch or need additional leverage, you can try using lock ring pliers. Position the pliers firmly onto the locking ring, ensuring there is sufficient grip. Expand the ring with the pliers, and gently twist and pry it out. Alternatively, you can use a hook-type tool to gently bring out the first bit of the locking ring, creating a gap. Then, slide a small bladed screwdriver behind the gap and continue to work it around until the ring comes free.
Always exercise caution when performing these steps to avoid damage to the locking ring or surrounding components. It is also crucial to use non-sparking tools, such as brass or non-ferrous metal tools, to minimize the risk of creating sparks that could potentially ignite fuel vapors.
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Take out the fuel pump and float assembly
To take out the fuel pump and float assembly, you will first need to raise and support the vehicle safely. Next, drain the fuel tank. Remove the undercover screws and undercover, if your Isuzu Rodeo is so equipped. Unfasten all gas line hose connections and the fuel pump ground wire. Remove the filler neck hose and clamp. Remove the breather hose and clamp.
Now, disconnect the fuel tank hose-to-evaporator pipe. Place a suitable floor jack with a piece of wood on it under the fuel tank. Remove the fuel tank mounting bolts and lower the tank from the vehicle. Disconnect the hose from the pump to the fuel filter. Finally, remove the fuel pump bracket plate and fuel pump as an assembly.
This process should be reversed to reinstall the fuel pump and float assembly.
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Install the new pump, ensuring the sock is in place
To install the new fuel pump, you must first access the fuel tank. This can be done by opening the hood of your Isuzu Rodeo and unscrewing the cap on the Shrader valve near the fuel injectors. Next, use a floor jack to raise the vehicle near the rear driver's side wheel and place it on a jack stand for safety.
Now, disconnect the two straps that support the fuel tank and carefully lower it. You will then need to remove the locking ring on top of the fuel tank using non-sparking tools, such as a brass hammer and brass punch. With the locking ring removed, you can take out the fuel pump and gas gauge float assembly.
At this stage, you should see a sock over the fuel pump pickup. Ensure that this is in good condition and properly placed before installing the new fuel pump. If the sock is damaged or worn, it should be replaced.
Proceed by installing the new fuel pump into the assembly, ensuring that the sock is securely in place. Check the wires for continuity through to the plug, as these are known to sometimes fail.
Finally, reverse the previous steps to reinstall the fuel pump and fuel tank. Secure all connections and components, and ensure that the sock remains in place throughout. Once the fuel tank is securely mounted, you can reconnect the battery and turn on the vehicle to test the new fuel pump.
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Reinstall the fuel pump and tank
To reinstall the fuel pump and tank, reverse the steps taken to remove them.
First, lift the fuel tank and slide it back under the vehicle. Reconnect the two straps that support the fuel tank.
Next, place the fuel pump and gas gauge float assembly back on top of the fuel tank. Ensure the locking ring is securely in place, using a brass hammer and brass punch. Check that the sock is covering the fuel pump pickup.
Finally, reconnect the fuel lines, electrical plug, and bolts to the in-tank unit. Ensure that the wires are connected and check for continuity through to the plug.
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Frequently asked questions
There is an access hole under the back seat on the right side. Take off the panel, then the fuel lines, then the electrical plug, and then the bolts.
Disconnect the two straps that support the fuel tank. Lower the fuel tank and get it out from under the vehicle.
On top of the fuel tank, you will see a locking ring. Use non-sparking tools such as a brass hammer and brass punch to remove the locking ring.
