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2003 malibu. fuel pump has relay. is there also a fuse in there for fuel pump?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 88 Answers

SOURCE: 99 volvo s80 fuel pump getting no current. Fuse OK but can not find relay between fuse and pump

ther are good few types of fuse box for this car.but if it has 6 relays along the bottom its relay number 28hope this helps

Posted on Oct 27, 2008

  • 1 Answer

SOURCE: I need to know what

The fuse number for the fuel pump motor is #5 located under the hood. And it takes a 15A fuse.

Posted on Apr 05, 2009

  • 1 Answer

SOURCE: fuel pump relay

its in the trunk on the passanger side of the back seat

Posted on Jul 24, 2009

ZJLimited
  • 17970 Answers

SOURCE: 2000 Malibu Starts then looses

Keep in mind that you have several components there:
- Fuel Pump Sender Assembly,
- Fuel Pressure Regulator,
- Fuel Rail Assembly, and
- Fuel Injectors.

1.- Fuel Pump (Sender Assembly) - TESTING
Refer to the accompanying charts for fuel pump diagnosis and testing.

The fuel injection system remains under pressure, even after the engine has been turned OFF. The fuel system pressure must be relieved before disconnecting any fuel lines. Failure to do so may result in fire and/or personal injury.

eb744a2.jpg

Fig. 3.1L engine OBD system check to be done before fuel pump relay circuit diagnosis


26456ba.jpg

Fig. 3.1L engine fuel pump relay circuit diagnosis (1 of 2)


b3b739d.jpg

Fig. 3.1L engine fuel pump relay circuit diagnosis (2 of 2)


db78a73.jpg

Fig. View of the fuel pressure test port (Schrader valve)-3.1L engine

A - 3.1L engine fuel system pressure test (1 of 4)
B - 3.1L engine fuel system pressure test (2 of 4)
C - 3.1L engine fuel system pressure test (3 of 4)
D - 3.1L engine fuel system pressure test (4 of 4)

c8a9798.jpg

Fig. The fuel pump/fuel sender module assembly is mounted in the fuel tank


2.-
Fuel Pressure Regulator - REMOVAL & INSTALLATION

(the fuel pressure regulator, which is located on the fuel rail assembly)

NOTE:
Before removing the fuel regulator assembly, place a clean shop towel under the regulator to catch any fuel drips

  1. Properly relieve the fuel system pressure.
  2. If not done already, disconnect the negative battery cable.
  3. On the 3.1L engine, remove the intake manifold plenum, as outlined in .
  4. On the 2.4L engine, remove the fuel rail. Refer to procedure earlier in this section.
  5. Detach the vacuum line from the regulator.
  6. Place a shop towel under the regulator to catch any fuel that may drip out. Unfasten the fuel pressure regulator retaining screw, then remove the regulator by twisting and pulling it from the fuel rail.
  7. Remove and discard the O-ring seal. Inspect the filter screen for contamination and replace if necessary.
To install:
  1. Prior to assembling the pressure regulator to the fuel rail, lubricate the new rail-to-regulator O-ring seal with clean engine oil.
  2. Place the O-ring on the pressure regulator and install the pressure regulator to the fuel rail.
  3. Install the retainer or coat the regulator mounting screws with an approved thread locking compound and secure the pressure regulator in place. Tighten the mounting screw to 76 inch lbs. (8.5 Nm).
  4. If removed, install the fuel rail assembly to the engine.
WARNING The fuel return pipe must be connected before tightening the regulator retaining screw to prevent the regulator from rotating. Rotation of the regulator could damage the retainer and spacer bracket and lead to a fuel leak at the regulator inlet.
  1. Connect the fuel feed line and return line to the fuel rail assembly, use a backup wrench on the fittings to prevent turning.
  2. Attach the vacuum line to the regulator.
  3. On the 3.1L engine, install the intake manifold plenum.
  4. Connect the negative battery cable. Turn the ignition to the ON position for two seconds, then turn it to the OFF position for ten seconds. Turn again to the ON position and check for fuel leaks.

continue...

Posted on May 24, 2010

  • 24 Answers

SOURCE: 2003 navigator fule pump relay

Located under the dash on drivers side.

Posted on Jan 25, 2011

Testimonial: "that doesnt help me at all. need a exact location of relay"

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Just answered a similar question. Does it turn over? Either way, I would look for blown fuse and then check (usually) under the hood for a relay. You can some times test by taking another relay for lights or something not needed to run and switch them IF THEY ARE EXACTLY the same. If the pu,p works you will know.

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Usually a sign of a faulty pump, or a problem in the wiring between the relay and the gas tank.
You could unplug the harness at the tank to verify.

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Try putting in a new fuel relay fuse in fuse box under the hood

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1 Answer

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A fuse will blow for 2 reasons . 1) If the device has a Short in the circuit that runs through this fuse. 2) If the device draws more amperage from the power source through the fuse than the fuse will handle. ex. if a fuel pump or starter has a 20 amp fuse and the starter/fuel pump is going bad and draws 30 amps it will blow the fuse. A fuel pump on a 1996 vehicle is located in the fuel tank and is kept cool by the surrounding gas and the gas that flows through it. Overheating a fuel pump is virtually impossible. That being said there is a High probability that replacing the fuel pump and relay will fix this problem. It is quite common for this to occur in the GM vehicle of 1996. When the pump starts to fail, it draws an excessive amount of amperage and would blow the fuse. Hope you find this information useful.

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1 Answer

My 2003 malibu with turn over but not start fule pump is getting 55 lbs of pressure at filter and rail if you spray start fluid in it it will start and run until it runs out of start fluid could this be a...


Signs of a Bad Fuel Pressure Regulator
the vehicle will not start, if a bad regulator. Usually, this is a problem that is encountered in the morning when you start your vehicle. Many a times, the engine starts, but stalls shortly after starting. check the fuse and relay for pump. also remove line to fuel pressure regulator and if fuel in line, replace fuel pressure regulator. check for spark and also the timing belt. its one sign of not starting. if car runs fine on spray, I would not say its the timing belt or chain.

Aug 05, 2010 | 2003 Chevrolet Malibu

1 Answer

Does 2001 chevy malibu have a fuel pump fuse


I am not sure if it has a fuse but your owners manual will say. I know it has a relay. If your not getting any fuel a good bet is to check your fuel filter and check to see if the fuel pump turns on for a second when you first turn the key on. Your pump may be bad. I have a 2001 malibu and have had 3 pumps in it since new.

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If it turns over, but won't start when hot: first, change your air filter. 2. Check your engine ground connection. 3.Check for a loose connection in the ignition system 4. You could have a faulty idle control valve. 5 . Faulty coil, Mass air flow, idle control sensor... but you should have an engine light on if it's one of those.

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It should be in the trunk on either side of the finder wells.

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2 Answers

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You will need to Check the Fuel Pump and Relays, and also Change the Fuel Filter. There is a Fuse Relay Box under the Hood that has the Fuel Pump Relay in it.

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