One of the most common problems that you will likely encounter with Chevy pickups is fuel pump malfunctions. Over time, you will begin to notice a dramatic decrease on the truck's fuel mileage and engine performance. If that is the case, replacing the fuel pump might be necessary. With a little know-how and basic knowledge on automotives, you can easily accomplish the task.
If your fuel pump is not working efficiently, then you cannot expect your vehicle to run well. Every vehicle engine operates by using a mechanical pump or a fuel-injected pump which draws gas from the fuel tank and delivers it to the carburetor or fuel injector. Most modern engines use a fuel injected pump to transfer fuel at a high pressure via an electric pump into the fuel-injection system. If your engine is quite old it may use a mechanical pump to feed gas from the fuel tank to your carburetor.
To help you fix the problem, here is a detailed guide on how to properly replace a Chevy truck's fuel pump.
Step one: Prepare the needed materials which will include the siphoning kit, transmission jack, locking pliers, new fuel pump module, needle-nose tool, gas can, screw driver, jack stands and wrench.
Step two: After gathering the materials, begin relieving the pressure on the truck's fuel system. Do this by disconnecting the fuel box relay on the fuel box. After which, you have to start the engine and allow it to run until it stalls. Then, remove the negative battery cable and use the siphon kit to get the fuel out of the tank.
Step three: Once all the fuel has been drained, pull out the fuel tank. With the help of the jack stand, raise the truck on the desired height. Then, remove the tank's shield covering as well as the EVAP canister. And make sure to disconnect all the fuel supply lines.
Step four: Next, release the ring's locking tab with the use of locking pliers. Slightly tilt the old fuel pump module and then slowly pull it out from the tank.
Step five: Clean the fuel tank's surface with a lacquer thinner or acetone before placing the new fuel pump module. Properly return all the connections that you have disconnected and then re-pressurize the fuel system, reconnect the relay battery line and then turn the engine on for two seconds and then off for five seconds. Repeat this for ten times until the engine become used to the new fuel system pump.
Read and understand this useful guideline by heart so you'll know how to appropriately replace fuel pumps on Chevy pickups.
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