Replacing Fuel Pump In Srt 4: Step-By-Step Guide

how to change fuel pump srt 4

Replacing the fuel pump in a Dodge SRT-4 is a complex process that requires a range of tools and a good understanding of car mechanics. The fuel pump is responsible for delivering fuel from the tank to the engine, and when it fails, the car will not start or run. To replace the fuel pump, the car must first be jacked up and the fuel tank lowered. The old pump is then removed, and a new one installed, along with a new O-ring seal. Finally, the fuel tank is raised back into position, and the car is lowered.

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Jack up the car and disconnect the battery

Jacking up your car and disconnecting the battery is an important first step when changing the fuel pump on your SRT 4. This procedure will ensure your safety and make it easier to access the fuel pump.

Park your car on a level surface and engage the parking brake. You will need a jack, jack stands, and a pair of jacking points on the car's frame. Place the jack underneath the car, following the manufacturer's instructions for the correct placement. Slowly raise the jack until it makes contact with the car's frame, then continue lifting until the car is high enough to fit your jack stands. Place the jack stands in the appropriate locations, and carefully lower the car onto them. Ensure that the car is securely supported before proceeding.

Now, locate the battery. It is usually in the engine bay, near the firewall, or in the trunk. Identify the negative terminal, which is marked with a '-' symbol or black cover. Disconnect this terminal first, using a wrench or socket to loosen the nut that secures the cable. Once the negative terminal is disconnected, move on to the positive terminal, marked with a '+' symbol or red cover. Loosen the nut and remove the cable, ensuring that the wrench or socket does not touch any metal parts of the car, as this could cause a short circuit. With both terminals disconnected, you can now safely proceed with the fuel pump replacement.

Remember to exercise caution when working underneath a jacked-up vehicle. Ensure that the car is securely supported and always use jack stands. Do not work alone, and wear protective gear, including gloves and safety goggles.

By following these steps, you've successfully jacked up your car and disconnected the battery, making it safe to work on and providing access to the fuel pump for replacement.

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Remove the fuel pump assembly

To remove the fuel pump assembly from your SRT-4, you will first need to drive your car until the gas light comes on, or preferably, until it starts to flash. At this point, you can choose to bleed the fuel system, but this is not necessary. Next, remove the gas cap, jack up the rear of the car, preferably on the passenger side, and use jack stands to hold it in place. Disconnect the battery, then remove the two connectors on the fuel pump assembly and disconnect the fuel line.

There are two bands holding the fuel tank in place, which you will need to disconnect. These are likely 14mm. Carefully lower the tank, leaning it towards the passenger side of the vehicle, and paying close attention to the charcoal canister to avoid damaging it. Use a hammer and screwdriver to loosen the retainer (which is white), being careful not to split it.

Now, slowly pull out the pump assembly, being careful not to damage the float. Once removed, disconnect the float wires. A pick tool will be useful for this step. Remove the blue retainer around the terminals, ensuring you remember where the wires go. The wires that do not connect to the pump should be disconnected at this point.

Finally, disconnect the fuel pump wires, again, remembering where they connect.

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Carefully let down the tank

To carefully let down the tank when changing the fuel pump on an SRT-4, follow these steps:

First, make sure the car is jacked up in the rear, preferably on the passenger side, and is being held up by jack stands. There are two bands holding the tank up, which you should disconnect. These bands are likely 14mm. As you let the tank down, lean it towards the passenger side of the vehicle, being very careful not to damage the charcoal canister.

Use a hammer and a screwdriver to loosen the retainer (which is white) and be cautious not to split it. Slowly pull out the pump assembly, being careful not to damage the float. Once you have removed the pump assembly, disconnect the float wires. It may be helpful to use a pick for this step.

Next, disconnect the blue retainer around the terminals, making sure to remember where the wires go. These are the wires that do not go to the pump. Now, disconnect the fuel pump wires, again being mindful of where they connect.

At this point, the tank has been carefully lowered and you can proceed to split the fuel container using the supplied tool. This should be red with two forks.

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Remove the old pump and replace with a new one

To remove the old pump and replace it with a new one, you will need a jack, jack stands, a hammer, a screwdriver, and a supplied tool that comes with the new pump (it is red with two forks).

First, drive your car until the gas light comes on, and preferably until the light starts to flash. At this point, you can bleed the fuel system, although this is not necessary. Next, remove the gas cap, then jack up the car at the rear, preferably on the passenger side, and use jack stands to hold it up. Disconnect the battery, then remove the two connectors on the fuel pump assembly and disconnect the fuel line. There are two bands holding the tank up; disconnect these (they are probably 14mm).

Let the tank down carefully, leaning it towards the passenger side of the vehicle, and paying close attention to the charcoal canister so as not to damage it. Use a hammer and a screwdriver to loosen the retainer (it's white). Be very careful not to split the retainer. Pull out the pump assembly slowly, being careful not to damage the float. Once removed, disconnect the float wires (a pick comes in handy for this). Remove the blue retainer around the terminals—these should be the wires that do not go to the pump. Remember where they go. Then, disconnect the fuel pump wires, again remembering where they hook up.

Now, split the fuel container with the supplied tool. Take out the old pump and replace it with the new one. Make sure to install the new O-rings that come with the new pump. Now you are ready to install everything in reverse order, but don't forget the blue retainer for the fuel level wire. When putting the fuel pump unit back in, make sure to install a new O-ring on the tank first, then put the tank unit in. Tighten the retainer hand-tight, then use a hammer and screwdriver to tighten the rest of the way, being very careful not to get carried away and ruin the retainer. Put the tank back into its proper spot, tighten down the bands, install the fuel line, and connect the connectors to the proper locations.

Finally, connect the battery. Turn the key to the ignition on, but don't turn over. Repeat the cycling of the pump 3-4 times. On the 5th time, turn over. If the car starts, you're good to go. If not, you will have to check your connections by removing the tank. If the vehicle has started, check to make sure there are no leaks at the tank. If there are no leaks, you're done!

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Reinstall the fuel pump unit and check for leaks

Once you have installed the new fuel pump, you will need to put the fuel tank back into its proper spot. Tighten down the bands, install the fuel line, and connect the connectors to the proper location.

Next, reconnect the battery and turn the key to the ignition. Do not turn the car on. Repeat the cycling of the pump 3-4 times. On the fifth time, turn the car on. If it starts, you're good to go. If it doesn't, you will need to check your connections by removing the tank.

If the vehicle has started, check to make sure there are no leaks at the tank. If there are no leaks, you are done with the installation.

If there is a leak, you can try using a sealer on the tank. If this doesn't work, you will need to remove the tank and check what is causing the leak.

Frequently asked questions

It takes about an hour to change the fuel pump on an SRT 4.

You will need a jack, jack stands, a hammer, a screwdriver, and a set of metric sockets.

If your car is not starting and you have checked for spark, you can test your fuel pump by swapping the horn and fuel pump relay. If it's still not working, use a voltmeter to check for voltage at the fuel pump connector. If there is voltage, your pump is probably dead. If there is no voltage, the problem is in the wiring.

Bleeding the fuel system is not necessary, but it is recommended.

It is important to be very careful when loosening and tightening the retainer to avoid damaging it. It is also important to install a new O-ring on the tank before putting the new fuel pump unit back in.

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