The 2005 Chevrolet Malibu come standard v a 145-horsepower, 2.2-liter engine. This engine requires in between 50 and 60 psi that fuel press to run correctly. There is no the correct fuel pressure your Malibu may experience diminished performance, turbulent idle, stumbling or might not also start at all. The fuel pump is what provides the press to the whole system, so as soon as it fails, you room bound to endure the aforementioned symptoms. Replacing the base level 2005 Malibu’s fuel pump is a tedious process, yet the money you save doing it you yourself is well worth it.

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Fuel Tank Removal

Kick wheel chocks in former of the front tires. Lift the behind of the Malibu v a floor jack and slide jack stands under the rear suspension crossmember. Reduced the auto onto the jack stands.

Find the fuel pump wiring exploit on the upper, front component of the fuel tank. Unplug the wiring harness. Unscrew the gas cap from the automobile to relieve the tank pressure. Start the Malibu’s engine and allow it come idle till it stalls. Crank the car for secondary three seconds to relieve any residual pressure.


Connect a memory saver to the vehicle, utilizing the storage saver’s instructions together your guide. Ease the an unfavorable battery cable v a mix wrench and also pull that from the battery. Set the cable aside to stop inadvertent reconnection.

Insert a fuel siphon through a semi-rigid siphon hose right into the fuel filler hose. Feeding the siphon hose downward until you feeling it contact the bottom of the fuel tank. Ar the siphon’s drainpipe hose right into a 5-gallon fuel storage tank. Siphon the fuel from the tank, utilizing the siphon’s pump. As soon as the fuel warehouse container fills, relax the vacuum native the siphon and transfer the drainpipe hose to a brand-new container, climate restart this step.

Remove the siphon native the fuel filler hose once you can not siphon any more fuel indigenous the tank.

Crawl under the vehicle. Unplug the evaporative emissions vent valve solenoid’s wiring harness, which girlfriend can find on the rear, driver’s side of the fuel tank. If the car has rear antilock brakes, traction the ABS wiring exploit from the next of the evaporative emissions canister on the driver’s side of the fuel tank.

Move to the passenger’s side of the vehicle and also find the fuel-and-brake line bundle. Squeeze out the plastic ears on the quick affix fitting on each fuel pump line and pull every line away from the pump-to-engine lines. Plunder a special shop cloth approximately the now open end of the tank-to-engine fuel lines.

Loosen the water tap clamp securing the rubber end of the fuel filler water tap to the fuel tank, using a ratchet and also socket. Traction the fuel filler hose from the tank with a slim twisting motion. Pull the vapor recirculation line -- the rubber hose the runs follow me the fuel filler water tap – native its inlet on the fuel tank.

Position a jack stand under the muffler. Press every one of the underbody rubber exhaust hangers native the exhaust system. Reduced the exhaust until the muffler rests out of the fuel tank’s way, ~ above the jack stand.

Instruct one assistant to organize upward push on the fuel tank to prevent it native falling. Eliminate the bolts securing the left side fuel tank straps, utilizing a ratchet and socket, climate the best side straps.

Lower the passenger’s next of the fuel tank first, through the help of an assistant, to clear the exhaust system. Permit the tank to clear the passenger’s side framework rail, then relocate the tank toward the front, passenger’s next of the car as you lower it indigenous the vehicle. Traction the tank native under the vehicle.

Fuel Pump Removal

Unplug the wiring harness and also disconnect the ventilation hose from the fuel pump.

Turn the fuel pump’s locking ring counterclockwise with a ratchet and also 130 mm lock ring – GM component No. J-45722 – while your assistant hold the tank indigenous spinning. Nothing be alert if the fuel pump module jumps increase slightly when you eliminate the ring, this is normal.

Lift the fuel pump module just enough to access the fuel tank ventilation connector top top the underside the the fuel pump’s upper plate. To express the ear on the rapid disconnect fitting and unplug the ventilation connector. Remove the fuel pump assembly native the tank.

Pull the old O-ring turn off the fuel pump’s mounting feet on the tank, making use of a flat-head screwdriver.

Fuel Pump Installation

Install a brand-new O-ring, i beg your pardon comes through the new pump, onto the fuel pump’s mounting feet in the tank.

Guide the fuel pump module right into the tank and also before completely seating it, attach the fuel tank’s ventilation hose to the underside that the pump’s upper plate. Push the ventilation pipe upward till its quick-connect installation snaps into place.

Lower the fuel pump module right into the tank. Push downward ~ above the fuel pump to till the modules top panel is flush with the height of the tank. Sit the locking ring end the fuel pump, therefore its tabs align through the notches in the tank. Revolve the locking ring clockwise till it seats on its second stop – you will feel it click twice, the 2nd click is its 2nd stop.

Connect the wiring exploit to the fuel pump and also plug the ventilation hose to that is outlet on height of the fuel pump.

Fuel Tank Installation

Slide the tank under the vehicle and also with the assist of an assistant, background the driver’s side of the tanks over the exhaust. Lift the passenger’s side of the tank upward, so that is just inside the the appropriate side frame rail. Verify that you did not pinch the fuel pump wiring exploit or fuel feeding lines.

Instruct the assistant to hold the tank in location as you download the tank straps and hand-tighten their retaining bolts. Tighten the strap bolts come 15 foot-pounds, using a torque wrench and also socket.

Tell your assistant to lift and also hold the exhaust system, together you press the rubber hangers back onto their respective exhaust arms.

Connect the fuel pump’s main power wiring exploit to the Malibu’s wiring harness

Press the fuel filler hose onto the inlet top top the fuel tank and tighten its water tap clamp to 35 inch-pounds, using an inch-pound torque wrench and also socket. Push the vapor recirculation line right into its inlet top top the fuel tank.

Remove the shop cloths from the fuel pump-to-engine lines and press them right into their particular fuel pump lines till you hear the fast connector snap into place.

Plug the evaporative emissions vent valve solenoid’s wiring harness tot eh Malibu’s wiring and press the ABS wiring harness back into ar on the evaporative emissions canister, if applicable.

Raise the automobile off the jack stands and remove the jack stands. Lower the Malibu to the ground. Reconnect the an adverse battery cable come the battery and also tighten that is retaining bolt come 13 foot-pounds.

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Remove the memory saver. Tighten the gas cap until it clicks three times. Revolve the ignition to the “Run” position for 2 seconds, climate to the “Off” place for 10 seconds. Revolve the ignition earlier to the “Run” position and check for fuel leaks indigenous under the vehicle. Start the engine and verify that it idles normally. Close up door the engine off.