Replacing Fuel Pumps: Intrigue's Guide To Diy Repair

Replacing the fuel pump in an Oldsmobile Intrigue is a complex process that requires a qualified mechanic or an experienced DIYer. The fuel pump is located inside the fuel tank and supplies pressurised gasoline to the fuel injectors in the engine. To access the fuel pump, one must first disconnect the battery to reduce the risk of fire. Then, either drain the fuel from the tank and lower it from the vehicle or locate and remove the access panel above the tank. Once the pump is accessible, the supply and return hoses, EVAP system hoses, and electrical connections must be carefully removed. After installing the new pump, the mechanic will add fuel and run the engine to test for leaks. The average cost for this repair is between $1,178 and $1,406, with labour costs estimated between $123 and $155, and parts priced between $1,055 and $1,251.

Access the fuel pump by removing the rear seat and the trunk liner

To access the fuel pump, you will need to remove the rear seat and the trunk liner. This will allow you to reach the access panel above the fuel pump, which is located in the passenger compartment.

First, remove the rear seat. This will give you access to the trunk liner. Once the rear seat is removed, you can then remove the trunk liner. With the trunk liner out of the way, you will be able to see the access cover. Remove this cover to access the fuel pump.

In some cases, you may need to drain the fuel from the tank before removing the access panel. Additionally, there is a special tool that is recommended for removing the locking ring that secures the fuel pump to the tank. This tool can usually be rented from a local auto parts store.

Use a special tool to remove the locking ring

To remove the locking ring of a fuel pump on an Oldsmobile Intrigue, you will need to access the pump through the trunk. Open the trunk and remove the liner to expose a cover. After removing the cover, you will need to use a special tool to remove the locking ring.

There are a few options for the special tool that can be used. Some people have mentioned using a large pair of channel locks to grab the lock ring and twist it counterclockwise. Another option is to create your own tool by purchasing a $2 pipe union (4" drainage pipe) from a hardware store and dremelling out some slots. This can be useful for both removing and reinstalling the locking ring.

If you don't want to make your own tool, you can also rent a fuel pump removal kit from AutoZone that includes a nylon-coated hammer. Additionally, there are universal fuel tank lock ring removal tools available for purchase online.

When removing the locking ring, it is recommended to spray the area with penetrating oil, such as PB Blaster, to help loosen the ring. It is also important to be cautious and avoid creating any sparks that could ignite fuel fumes. Some people recommend using brass tools or covering the end of your tools with a shop rag to reduce the risk of sparks.

Disconnect the battery to reduce the chance of a fire

When replacing the fuel pump on your Oldsmobile Intrigue, it is important to take safety precautions to reduce the risk of accidents, such as fires. One crucial step is to disconnect the battery. Here are some detailed instructions and reasons why disconnecting the battery is essential:

Disconnecting the battery is a safety measure to prevent any accidental sparks or electrical issues that could potentially cause a fire during the fuel pump replacement process. By disconnecting the battery, you eliminate the risk of electrical power being supplied to the fuel pump, which could ignite fuel vapors and cause an explosion.

To disconnect the battery, locate the negative terminal, which is usually marked with a "-" sign. Loosen the nut or bolt that secures the cable to the terminal using a wrench or socket. Be careful not to let the wrench or socket touch any other metal parts of the car, as this could create a spark. Once the cable is loose, carefully remove it from the terminal.

It is also important to take other safety precautions when working on the fuel system. Ensure that there are no ignition sources nearby, such as lit cigarettes or sparks from power tools. Always work in a well-ventilated area to avoid inhaling fuel vapors.

Some people argue that disconnecting the battery is not necessary as long as there is no key in the ignition and no chance of the ignition turning on. However, it is always better to be safe than sorry when working with flammable liquids and gases. Additionally, disconnecting the battery can also help reset the fuel pump and ensure proper functioning after installation.

In conclusion, disconnecting the battery is a crucial safety measure when replacing the fuel pump on your Oldsmobile Intrigue. By taking this step, you significantly reduce the risk of fire and create a safer working environment. Always put safety first when working on your vehicle to protect yourself and those around you.

Check for fuel leaks and pressure at the fuel injectors

To check for fuel leaks and pressure at the fuel injectors, you will need to gain access to the fuel pump. For a 2000 Oldsmobile Intrigue, this can be done by opening the trunk and removing the liner; you will then see a cover that can be removed. For a 2001 Oldsmobile Intrigue, you will need to remove the rear seat to access the panel above the fuel pump.

Once you have accessed the fuel pump, you can check for fuel leaks. Fuel leaks can be observed in several ways. If the leak is on the high-pressure side of the system, there may be oil residue or ice at the leak point. Depending on the size of the leak, you may hear sounds ranging from a slight hiss to rushing air. If the fuel in your vehicle is odourised, you may be able to smell it; however, this is not the case for hydrogen cylinders.

To check the fuel pressure, you will need a fuel pressure tester. This consists of a gauge attached to a fuel hose and multiple fittings, which connect to the fuel system. When connected and pressurised, the tester will display the pressure in psi. The pressure required will depend on the engine; older throttle-body injected systems may need as little as 10 psi, while multi-port injection can see as high as 60 psi. You can find the correct pressure for your engine in the repair manual.

If there is zero fuel pressure, this means the pump is either dead or not getting power. In this case, you should check the fuel pump fuse and verify power to the pump with a multimeter. If there is low fuel pressure, the fuel filter may be clogged, or the pump may be failing. A clogged fuel filter is an easy fix, but if the pump is failing, you will need to replace it. High fuel pressure can be caused by a clogged or kinked fuel return line, a faulty fuel pump driver module, or a faulty fuel pressure regulator.

Replace the fuel filter and any other relevant parts

To replace the fuel filter and any other relevant parts of your Oldsmobile Intrigue, you'll first need to relieve the pressure from the fuel filter so you can remove and replace it safely. Here's a step-by-step guide:

Step 1: Remove Pressure from the Fuel Line

Open the hood of your car and remove the fuel pump fuse or relay. You can usually find the relay under the hood, and you can locate the fuse by checking your owner's manual or looking under the lid of the fuse box.

Step 2: Start the Engine and Let it Stall

Start your engine and let it run until it stalls. This may activate your Check Engine Light. After the engine stalls, crank it again for about 5 seconds to release any remaining fuel pressure. This step should relieve most of the pressure, but there might still be some fuel left in the lines. Turn the ignition off.

Step 3: Disconnect the Battery

Disconnect the battery ground cable, which is marked with a minus sign. Set it aside, ensuring it doesn't touch any metal surfaces.

Step 4: Prepare a Drain Pan

Place a drain pan underneath the fuel filter to catch any remaining fuel that might leak out when you detach the lines. It's also a good idea to have some rags or absorbent material nearby.

Step 5: Locate and Remove the Fuel Filter

The fuel filter is typically located between the fuel pump and the fuel injectors. Once you've found it, push the release buttons on either side to detach it from the lines. If your model has clips instead of buttons, you may need a quick-release tool or a screwdriver to remove the filter. Be careful not to kink the plastic fuel lines during this process.

Step 6: Disconnect the Fuel Tube Fittings

Disconnect the fuel tube fittings from the filter, loosen the clamp, and then remove the old filter. Pay attention to the direction of fuel flow, which should be indicated by an arrow on the new filter and will always be towards the front of the vehicle.

Step 7: Install the New Filter

Install the new fuel filter, using the fittings that came with it to secure it to the fuel line. Tighten the clamp to hold the new filter in place.

Step 8: Reattach the Battery Cable and Fuel Pump Relay

Replace the fuel pump relay or fuse, and reattach the negative battery cable.

Step 9: Restore Pressure to the Fuel System

Turn the ignition to the "ON" position for a few seconds, then turn it off and repeat the process. This will bring pressure back into the fuel system.

Step 10: Check for Leaks

Check under your vehicle for any leaks. Start the engine and check again for leaks. If there are no leaks, you're done! Remember to dispose of the old fuel and filter properly, as they are considered hazardous waste.

Additionally, if you're accessing the fuel pump through the trunk, as is the case with some Oldsmobile Intrigue models, you'll need to remove the rear seat and the liner to access the cover for the fuel pump. A special tool is recommended to remove the locking ring.

Frequently asked questions