Question about 1984 Toyota Celica Supra

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Fuel pump car sat up for 10 yrs, drained tank, fuel sending unit full of rust. What needs to be done

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  • jmslamoureux Apr 24, 2009

    did the oil change, changed the gas. fuel pump no workie. tank full of rust. need to clean all conponents

  • David Melrose May 11, 2010

    Do you want to just clean the fuel sending unit or do you want to know what all to do to get the entire fuel system back up to running condition?



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Need to replace the tank. Buying a used tank will just put you in the same place you are now. There is also bladders that are 8 gallons you can replace it with, You also have to replace fuel filter and probably the fuel pump.

Posted on Sep 09, 2012

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You need to replace the fuel tanl, fuel pump and fuel filter. Also you must do an oil change too.

Replace battery too.

Rate this solution please.

Posted on Apr 24, 2009

  • Onifade Adewunmi
    Onifade Adewunmi Apr 25, 2009

    You need to change your tank if it is an iron material tank.



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Where is the fuel filter on a 1999 ford taurs

The fuel filter is located in the sending unit. This contains three primary components - the fuel pump, the fuel filter, and the fuel level sensor. The sending unit is located inside the fuel tank. This is done because the fuel around it helps cool the fuel pump, therefore extending its life. To remove the unit(You might need a lift), you need to:
1) Drain the fuel tank
2) Detach the fuel tank from the vehicle
3) Lower the tank
4) 'Unlock' the sending unit (it sort of locks in there, but there's no key or anything)
5) Remove the whole unit and replace the problem part.
6) Put the sending unit back.
7) Re-attach the tank.
8) Fill the tank.

Apr 23, 2012 | 1999 Ford Taurus

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2000 s-10 4 cyl. truck runs good gas gadge gose from full to emty with a full tank or emty tank dose not matter? whats the fix!

had the same problem on my 2000 s-10 ,turned out the wire from sending unit had worked loose(bad crimp). The fuel pump had recently been replaced. the connector to the sending unit was different from original . the new pump included the different connector ,but it had to be spliced in .Check connections at tank/fuel pump.Also there were 3 ground connections 1 tank to frame 2 bed to frame on my s-10 hope this helps

Mar 30, 2011 | 2000 Chevrolet S-10

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How do I change the fuel pump in a 1998 S-10 chevy pickup?

The electric pump is attached to the fuel sending unit, located in the fuel tank.


Fig. 1: Exploded view of the fuel pump and related components used on TBI equipped models (click for zoom)

  1. Properly relieve the fuel system pressure.
  2. Connect the negative battery cable.
Be sure to keep a Class B (dry chemical) fire extinguisher nearby.

CAUTION Due to the possibility of fire or explosion, never drain or store gasoline in an open container.
  1. Drain the fuel tank, then remove it from the vehicle. Refer to the procedure found later in this section for details.
  2. Using the GM fuel gauge sending unit retaining cam tool No. J-24187, J-36608 (or equivalent) or a brass drift and a hammer, remove the cam locking ring (fuel sending unit) by twisting counterclockwise. With the locking ring released, carefully lift the sending unit from the fuel tank.
  3. Remove the fuel pump from the fuel sending unit, by performing the following procedures:
    1. Pull the fuel pump up into the mounting tube, while pulling outward (away) from the bottom support.
When removing the fuel pump from the sending unit, be careful not to damage the rubber insulator and the strainer.
    1. When the pump assembly is clear of the bottom support, pull it out of the rubber connector.
To install:
  1. Inspect the fuel pump hose and bottom sound insulator for signs of deterioration, then replace, as necessary.
  2. Push the fuel pump onto the sending tube.
  3. Using a new sending unit-to-fuel tank O-ring, carefully lower the sending unit/fuel pump assembly into the fuel tank.
When installing the sending unit, be careful not to fold or twist the fuel strainer or it may restrict the fuel flow.
  1. Secure the sending unit by turning or driving the lockring clockwise and into position under the tabs.
  2. Install the fuel tank assembly to the vehicle.
  3. Connect the negative battery cable and check for proper pump operation.

Hope this helps (/remember to rate and comment this).

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1 Answer

How do you change fuel pump

  1. Disconnect the negative battery cable.
  2. Remove the fuel tank filler cap.
  3. Using a siphon hose, drain the fuel tank below 1 / 4 full.
  4. Block the front wheels and raise and support the rear of the vehicle with jackstands.
  5. Remove the fuel inlet and outlet hoses from the sending unit Be ready to catch any spilled fuel.
  6. Remove the sending unit wires.
  7. Using a brass punch and hammer, remove the sending unit retaining lockring by tapping it counterclockwise.
  8. Remove the sending unit, which incorporates the electric fuel pump, along with the O-ring seal from the fuel tank. Discard the O-ring.
  9. Remove and discard the pump inlet filter.
  10. Disconnect the fuel pump terminal wires.
  11. Remove the pump outlet hose and clamp.
  12. Remove the pump top mounting bracket nut and remove the pump.
  13. i have not done a 93 but according to the book you do not have to drop the tank only 96 and newer which is what i have go figure. are you sure its the fuel pump? make sure your getting power to the pump. you dont wanna change it if you dont have to its expensive and a pain

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I need to know how to install a new gas tank on a 1980 Ford F100. I just bought this truck and have a major rust problem in the old tank. The truck has a 460 in it and an electric fuel pump. I am a total...

Should be relatively simple. First off, if it has an underbody spare tire, you may need to remove that. Also, I forgot to ask if the vehicle is equipped with two fuel tanks. These instructions would be for the rear tank, which would probably be a lil more difficult than the front tank.
And you should probably siphon out as much existing fuel in the tank to make it as easy to handle as possible-when that time comes.-Most tanks have a drain plug at the bottom just for this purpose. You will need a floorjack (I recommend a piece of wood that will stabilize the tank) to ease the tank down slowly-there may be some more small hoses/and /or electrical connections (fuel/tank sending unit?/pump?) that you may have to play with/remove before completely lowering to the ground.

1-remove spare tire-if applicable
2-disconnect the battery-negative cable at least or the entire battery as a whole
3-drain fuel from tank into suitable container
4-remove fuel filler hose(fuel filler door to tank-hose clamps)
5-place jack into position
6-remove straps/bolts securing fuel tank to underbody
7-lower down the tank slowly until you can access the other electrical connections/fuel lines
8-remove and disconnect those-(I use colored tyraps to mark which ones go where-because a lot are the same size)
9-If you are tranferring the fuel pump/sending unit(some are two separate units,others are one piece), I recommend a new filter bag on the fuel pump-theyre cheap
10-installation is the reverse of removal-

Hope this helps!

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1 Answer

Fuel tank removal procedure

you are correct sir. not too easy to drop. if your tank isnt too bad you can try removing your back seat, opening the tank via sending unit cap(twist to left with large pliers) and pouring in a gallon of parts cleaner.(acetone methanol toulene) let that sit for a while and drain via hand pump(no drain...genius!) i suggest dropping it. if it has sat a while there is a chance for rust. you may notice bubbles under the black paint...this is a sure sign.begin by removing your exhaust,a recipricating saw should do the trick.sorry gonna have to weld that back.drop the rear suspension by unbolting the two bolts on both sides closest to the front.put some bricks under it or something to hold it up but let it drop as far as you can. get all of the brake lines,and fuel pump ,accumulator,filter, and hoses out of your way and just pull it right out.try not to curse. easy as that.

May 30, 2009 | 1985 Volkswagen Cabriolet

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87 celica sitting for 10 yrs, will not start

You need to drain all old fuel out of the fuel tank, the fill with fresh fuel, clean or change filters (air and fuel)
and if possible blow fuel lines through with compressed air. Check the plugs are clean and gapped correctly, check the engine oil is ok.
Then use some easy start in the air filter to get it to fire up, after 10 yrs it will be difficult to start, but should be alright after a few runs.
I hope this helps

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No power to fuel pump. Power up to open circuit relay.

No power to the fuel pump is a common issue with Toyota Trucks. More than likely, the power wire at the top of the fuel tank sending unit is rusted off. If this is the case, you either need to drop the tank, or remove the bed to replace the sending unit assembly. I have done it both ways, but have found that removing the bed is easier than dropping the tank.

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