Question about 1990 Oldsmobile Cutlass Ciera

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1990 Oldsmobile Cutlass Ciera fuel pump problems

My 90 Oldsmobile will run and start putting and getting ready to die on me constantly. The person who sold me the car told me that I was going to need a fuel pump pretty soon so I'm almost 80-90% sure that's the problem. But the thing is that I don't know whether or not the fuel pump is in the gas tank or not. What should I do?

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  • 2 more comments 
  • Anonymous Jan 06, 2009

    it needs fuel filter and where is it located

  • Anonymous Feb 12, 2009

    I need to no the easyest way to change the fule pump mine just went out

  • riggin Mar 17, 2009

    How do I replace a fuel pump on Old Cutlass, where is the pump located?

  • Anonymous Mar 21, 2014

    how do you change the fuel pump

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  • Master
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REMOVAL & INSTALLATION
See Figure 1

  1. Relieve fuel system pressure.
  2. Disconnect the negative battery cable.
  3. Raise the vehicle and safely support.
  4. Drain the fuel tank.
1990 Oldsmobile Cutlass Ciera fuel pump problems - 0900c152800cc4f3.jpgFig. 1: The electric fuel pump has an in-tank design
  1. Disconnect wiring from the tank.
  2. Remove the ground wire retaining screw from under the body.
  3. Disconnect all hoses from the tank.
  4. Support the tank on a jack and remove the retaining strap nuts.
  5. Lower the tank and remove it.
  6. Notice the position of the filter for replacement. Support the pump with one hand and grasp the filter with the other. Rotate the filter in one direction, then pull off of the pump. Discard the filter.
  7. Disconnect the fuel pump connector, on wagons it will not be necessary.
  8. On all models excluding wagons:
    1. Place the sending unit on a bench upside down, then pull the fuel pump downwards to remove from the mounting bracket. Tilt the pump outwards and remove from the pulsator.
  9. On wagons proceed as follows:
    1. Disconnect the negative terminal nut and lead (black) from the pump.
    2. Disconnect the positive lead (gray) from the pump, then loosen the coupler clamps.
To install:
  1. On all models excluding wagons:
    1. Assemble the rubber bumper and insulator onto the pump.
    2. Position the fuel sender assembly upside down and install the fuel pump between the pulsator and mounting bracket.
    3. Connect the pump electrical connector.
  2. On all wagon models:
    1. Position the fuel sender assembly upside down and install the coupler and coupler clamps to the inlet tube, but do not tighten at this time.
    2. Install the pump between the coupler and the mounting bracket, then tighten the clamps so that 5-8 teeth are engaged.
    3. Attach the positive lead (gray) to its positive terminal with the nut, then attach the negative lead (black) to the negative terminal.Always install a new filter when installing a new pump.
  3. Position the pump filter on the new pump and push the outer edge of the ferrule until it is fully seated.
  4. Install the sending unit.
  5. Install the gas tank and check for leaks.
  6. Reconnect the battery cable.da5e8e9.jpg

Posted on Oct 02, 2008

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Hello! Here is the diagram of the in-tank fuel pump...

Guru..................Saailer

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