Question about 1990 Oldsmobile Cutlass Ciera

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How do i test the fuel pump on a 90 cutlas cierra

I have the pump removed from the gas tank, and was wondering if testing it is as easy as just running a hot wire and ground to the pump?

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  • Denny Merritt Jan 08, 2013

    ty Jerry, Im headed to pick up a new one and will bring the old with me. I didn't know that they can be tested at most stores, ty for the info I really appreciate it!



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  • 3,904 Answers can tes the motor with a 12 volt souce but you also have to determine if it is pumping. Take it to a parts store, they will check it out free...most will anyway.

Posted on Jan 07, 2013

Testimonial: "ty Jerry I'm headed to pick up a new fuel pump and will bring the old with me. I wasn't aware that most stores can test them so I really appreciate the info and your help! "

  • Denny Merritt Jan 08, 2013

    I do have another question real quick about the fuel pump relay! I've located the four relays on the passenger side by the headlight. standing in front of the car facing the windshield do you know which one of the four relays is the fuel pump relay? "looking at the relays labeling them from left #1 to right #4"



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  • 2 Answers

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Posted on Jan 02, 2017

  • 2035 Answers

SOURCE: 1990 Oldsmobile Cutlass Ciera fuel pump problems

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.
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



Posted on Jun 12, 2008

  • 1263 Answers

SOURCE: 2000 olds silhouette

chances are your your fuel pump relay is bad that is easy to replace and cost is minimal

Posted on Aug 27, 2008

  • 1 Answer

SOURCE: 92olds cutlas cierra, 3.3 liter

how do you check your coils is there a photo that shows you how? or a video, web site

Posted on Oct 30, 2008

  • 141 Answers

SOURCE: fuel pump

Look inside car on top of fuel tank on car's floor for a metal cover or plastic door compartment screwed in to floor around 6 " to 10" wide, remove that if You find it and under you will find the tank

Posted on Jan 22, 2009

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