
Replacing the fuel filter on a 1998 Pontiac Montana is a relatively straightforward process. The fuel filter is located underneath the car, near the right-front wheel well or behind the driver's side door. Before beginning the replacement, it is important to relieve the fuel pressure by pushing in the valve under the black tire-valve-cap-looking plastic cap on the rear of the fuel rail on top of the engine. This will prevent fuel from spilling everywhere when the filter is removed.
| Characteristics | Values |
|---|---|
| Location of fuel filter | Behind the driver's side door, underneath near the right-front wheel well, between the gas tank and the rear suspension, or under the car by the rear passenger tire |
| Tools required | A set of plastic washers with a cut so they can fit over the fuel line, small pliers, a wrench, a pan to collect gasoline |
| Steps | Disconnect the fuel pump and run the car until the fuel system is emptied, relieve fuel pressure by pushing in the valve under the black tire-valve-cap-looking plastic cap, remove the clamps on the fuel filter with pliers, loosen bolts and a clamp on the filter, replace the filter |
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What You'll Learn

Location of the fuel filter
The fuel filter on a 1998 Pontiac Montana is located behind the driver's side door. It is an inline filter and requires a special tool to replace it. This tool looks like a plastic washer with a cut so it can fit over the fuel line.
The filter is also located underneath, near the right-front wheel well. It is in the fuel line, between the gas tank and the rear suspension. It can be accessed by raising the car and removing the rear wheel.
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Disconnecting the fuel pump
To disconnect the fuel pump on a 1998 Pontiac Montana, you will need to relieve the fuel pressure first. This can be done by pushing in the valve under the black, tire-valve-cap-looking plastic cap on the rear of the fuel rail on top of the engine.
Then, reach above the gas tank and disconnect the EVAP tube, return fuel tube, and wiring connector from the fuel pump. Loosen the second strap to let the gas tank rest fully on the floor jack. Push the floor jack out from below the Montana. Spray the surface around the gas tank with compressed air to remove contaminants near the opening of the gas tank. Loosen the metal locking ring cinching the fuel pump by striking the tabs of the ring with a mallet and chisel. Pull the ring off of the fuel pump. Lift the fuel pump out of the gas tank.
You will also need to disconnect the quick-connect fitting at the fuel filter and return line fitting, as well as the fuel tank electrical connector. Disconnect the vapor and vent hoses at the fuel tank.
It is important to exercise caution when disconnecting the fuel pump, as gasoline will spill out. It is also recommended to have the correct replacement filter on hand before removing the dirty one.
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Relieving fuel pressure
To relieve fuel pressure on a 1998 Pontiac Montana, you must first push in the valve under the black, plastic cap on the rear of the fuel rail on top of the engine. This will look like a black, plastic tire-valve cap. Be careful not to spill fuel everywhere.
Next, disconnect the fuel pump and run the car until the fuel system is emptied. You will spill gas everywhere if you don't do this.
Then, carefully loosen the bolts and clamps on the fuel filter. You will need a wrench to do this. Make sure you have a pan to collect the gasoline that will come out.
Finally, replace the filter.
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Removing the old filter
To remove the old filter from your 1998 Pontiac Montana, you will first need to relieve the fuel pressure. You can do this by pushing in the valve under the black, tire-valve-cap-looking plastic cap on the rear of the fuel rail on top of the engine. Be careful not to spill fuel everywhere.
Next, disconnect the fuel pump and run the car until the fuel system is emptied. You will need to use a wrench to carefully loosen the bolts on the fuel line and a clamp on the filter. Make sure you have a pan to collect the gasoline that will come out.
The fuel filter is located behind the driver's side door, underneath near the right-front wheel well. It is an inline filter and requires a special tool. The tool comes in a set of a couple of different sizes and looks like a plastic washer with a cut so it can fit over the fuel line. Just snap it on the line and push it into the old fuel filter to remove it.
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Installing the new filter
To install the new filter, first relieve the fuel pressure by pushing in the valve under the black, plastic cap on the rear of the fuel rail on top of the engine. Next, use small pliers to remove the clamps on the fuel filter and replace it. Push the line back in and it will snap into place.
Make sure you have the correct replacement filter before you begin. The fuel filter is located between the gas tank and the rear suspension, underneath near the right-front wheel well. It is an inline filter and requires a special tool. The tool comes in a set of a couple of different sizes and looks like a plastic washer with a cut so it can fit over the fuel line.
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Frequently asked questions
Behind the driver's side door.
A special tool that looks like a plastic washer with a cut so it can fit over the fuel line.
Snap the tool on the line and push into the old fuel filter.
Push the line back in and it will snap into place.
Around $11.











































