Yes, you can do it DIY without any special tools but only time-consuming if done step by step. The job is critical because most vehicles need to have their fuel pumps replaced after 60,000 to 100,000 miles; otherwise it can lead to a decline on engine performance. You will need some basic tools like wrenches, screwdrivers, and pliers to remove the damaged exhaust system parts, along with a jack and jack stands to raise up your vehicle safely. It does make the task more difficult without a tool such as a fuel line disconnect tool, but it can be done.
Step One: De-pressurizing The Fuel System You can achieve this by pulling the fuel pump fuse or relay while it is running to stall the engine as the fuel pressure decreases. It is good practice to blow off the fuel rail and line, to prevent it from spraying everywhere when you remove the lines. After that disconnect your car battery just to preclude yourself from an electrical shock.
Most fuel pumps are in the fuel tank, which requires that you remove it. First, jack the vehicle up on to jack stands safely. Next, unhook the fuel lines, electrical connectors and hoses (if present) from the tank with a wrench. Make sure to also label or mark everything to aid reassembly later. The tank is often secured with straps or screws that can be removed using a basic wrench or socket set.
After the tank is dropped down, the fuel pump can be removed from the top of this. The pump is usually secured by a locking ring that can be removed with a hammer and screwdriver, if you tap cautiously on the edges it will come out. This can be done without a special fuel pump lock ring tool but requires some patience. Once the ring is loose, pull the fuel pump straight up out of the tank and be careful not to damage or bend float arm and sending unit.
Reinstalling the new fuel pump is essentially the reverse of removal. Install the new pump in the tank, lock it down with the locking ring, and reattach all of the electrical connectors and fuel lines. It is very important to make sure the pump is properly seated when you put it back in, or else its a potential leak point as well as not providing the proper fuel pressure. Secure the fuel tank back in place be it using straps or bolts.
Jump in the car,, before you start it, turn to the on position a few times to cycle your new Fuel Pump -To allow the fuel system pump up full. This pressurizes the fuel system to start a pressurized engine. After you have primed the system, start the engine and look for leaks near fuel lines or tank.
Doing this without special tools to replace a Fuel Pump takes additional care, but can be done by anyone with plenty of patience and attention to detail. Whether it is the DIY project, or an urgent mobile mechanic situation, you know what to take care of at home and ensure some extra cost savings with it!