How To Clean Fuel Injectors 2009 Subaru Impreza

How to Change a Subaru Impreza Fuel Pump

by Dan Ferrell

Photo courtesy of IFCAR at Wikipedia.org.

The fuel pump on your Subaru Impreza needs little or no service at all. However, years of service wear out internal components, which touch on fuel delivery pressure and engine performance. Fortunately, changing your Impreza's fuel pump is a very elementary task following these steps. The procedure applies to the 2004 model, which is very similar to other years.

Stride 1

Park the vehicle in a prophylactic and level place.

Step 2

Open the hood and start the engine.

Step 3

Disconnect the fuel pump relay located in the power distribution box or fuse box at the forepart and to the left (driver's side) of the engine compartment. Markings on the relay, the inside or elevation of the distribution box lid should identify the relay.

Stride 4

Expect until the engine stalls and crank it for nigh 3 seconds to relieve the remaining pressure in the system and turn the ignition off.

Pace 5

Loosen the fuel filler cap, heighten the rear seat and move the floor mat to the side.

Step vi

Remove the access lid on the floor to expose the fuel pump assembly on the fuel tank and disconnect the fuel pump electrical connector.

Step 7

Clean the fuel lines connectors and around the fuel pump assembly hat to avert fuel system contamination.

Step 8

Remove the jet pump hose and disconnect the two quick connectors from the fuel supply and return lines. Hold the quick connector and press down on the locking tabs at the end of the connector; then pull the line to undo the connector. Place a shop rag underneath the fuel lines to absorb any fuel remaining in the line.

Step 9

Remove the nuts holding the fuel pump assembly to the fuel tank using a wrench or ratchet and socket.

Step ten

Lift the fuel pump assembly off the tank, discard the O-ring seal located underneath the assembly lid and install the new pump on the assembly.

Step 11

Install a new O-ring seal, set the fuel pump associates in the tank and tighten the basics in a crisscross blueprint. Torque basics to 3.3-foot lbs. (4.4 Nm).

Install the lid fuel hoses, plug the pump electrical connector and fuel pump relay. Start the engine and check for leaks. And then install the access lid, floor mat, rear seat and tighten the fuel filler cap.

Things Yous'll Demand

• Clean shop rags Wrench prepare Ratchet and socket set New O-ring fuel tank seal

Warnings

• Fuel is extremely flammable. Do not allow smoking or park your car near appliances with open flames, like water heaters or dryers, whenever you take to work on the fuel system of your vehicle to avert a possible blow.

Writer Bio

Since 2003 Dan Ferrell has contributed general and consumer-oriented news to television and the Spider web. His work has appeared in Texas, New United mexican states and Miami and on various websites. Ferrell is a certified automation and control technician from the Advanced Technology Heart in El Paso, Texas.

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