Question about 1993 Buick Century

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Can't figure how the union part is suppose to go

We have the fuel filter and the directions says to put union piece in the fuel hose. They have a metal piece that is 3 inches long and a plastic part. We can't figure what they mean

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You might be talking about a fuel line, quick disconnect connection. If so the tool looks like a mushroom with one side cut out. There are a few different styles out there and you can pick it up any part store. Just ask for a fuel line quick disconnect tool. When you insert the tool it will spread the three metal tabs so the lines can be seperated.

Posted on Jun 19, 2009


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How to replace fuel filteron 98 land rover discovery

1. Release the pressure from the fuel system
2. Access to the filter is gained through the RH rear wheel arch.
3. Loosen fuel unions and remove hoses. Clean the ends of debris.
4. Fit new filter observing direction of flow arrows.
5. Tighten to 30nM

May 05, 2014 | 1998 Land Rover Discovery

1 Answer

We replace fuel filter but its leaking so can we replace just a section of the fuel line? And is this a hard job to do?

You can change a section using a pipe cutter (to cut out the section) and use "compression unions". Bring a piece of the fuel line to the automotive store and ask them for a piece of line and Compression unions. These unions just slip over the lines and tighten on them for a leak free fit.

Jan 13, 2011 | Toyota Camry Cars & Trucks

1 Answer

How to change the fuel filter

Fuel Filter The filter should be inspected for external damage and/or leakage at least once a year. The fuel filter should be changed only as necessary. Toyota Motor Corporation recommends replacing the carbureted fuel filters at 15,000 miles and 30,000 miles on fuel injected models. NOTE: Fuel lines and connections, fuel tank vapor vent system hoses and fuel tank bands should be inspected every 60,000 miles or every 36 months. The fuel tank cap gasket should be replaced 60,000 miles or every 72 months.
REMOVAL & INSTALLATION Carbureted Engines The fuel filter on carbureted engines is a plastic cylinder with two ports for the fuel. It is usually located in the engine compartment near the charcoal canister.
  1. Using a pair of pliers, expand the hose clamp on one side of the filter, and slide the clamp further down the hose, past the point to which the filter pipe extends. Remove the other clamp in the same manner. Grasp the clamps and slide them up the hose slightly above the filter ends 88271p10.jpg

  2. Grasp the hoses near the ends and twist them gently to pull them free from the filter pipe. Slide the hose off the end of the fuel filter end 88271p11.jpg

  3. Pull the filter from the clip and discard. Be carefull when removing the filter, some fuel may spill out if not held upright 88271p12.jpg
    To install:
  4. Install the new filter into the clip. The arrow must point towards the hose that runs to the carburetor.
  5. Push the hoses onto the filter pipes, then slide the clamps back into position.
  6. Start the engine and check for leaks.
Fuel Injected Engines 1993-97 MODELS
  1. Turn the ignition switch to the LOCK position. Disconnect the negative battery cable and wait at least 90 seconds before proceeding with working on the fuel system. This will depressureize the fuel system. The fuel filter can be hard to locate on these engines 88271pa1.jpg
    Fig. 4: Exploded view of the fuel filter mounting - 1993-97 models 88271g02.gif
    Fig. 5: Disconnect the negative battery cable prior to all fuel system repairs 88271g03.gif
    Failure to depressurise the fuel system could cause personal injury.
  2. Disconnect the Intake Air Temperature (IAT) sensor wiring.
  3. Loosen the air cleaner hose clamp bolt, the disconnect the four air cleaner cap clips. Fig. 6: Loosen the air cleaner hose clamp bolt 88271g04.gif

  4. Spearate the air cleaner hose from the throttle body, and remove the air cleaner cap together with the air cleaner hose.
  5. Disconnect the EVAP canister hose from the charcoal canister. Fig. 7: Remove both EVAP hoses from the charcoal canister 88271g05.gif

  6. Remove the charcoal canister from the bracket.
  7. Place a suitable container or shop towel under the fuel filter. Remove the union bolt and two gaskets, then slowly disconnect the fuel inlet hose from the fuel filter outlet. Fig. 8: Remove the union bolt and two gaskets from the fuel filter, then disconnect the inlet hose from the filter 88271g06.gif

  8. Using a special wrench 09631-22020 or equivalent, disconnect the inlet pipe from the fuel filter. Remove the two bolts and the filter from the vehicle. Fig. 9: Using a special tool, disconnect the inlet pipe from the fuel filter 88271g07.gif
    Fig. 10: Remove the two filter mounting bolts, then separate the filter from the vehicle 88271g08.gif
    To install:
  9. Install the fuel filter with the two bolts and tighten them to 43 inch lbs. (5 Nm).
  10. Using the special wrench 09631-22020 or equivalent, connect the inlet pipe to the fuel filter. Tighten to 22 ft. lbs. (30 Nm). Using a torque wrench, tighten with a fulcrum length of 11.81 inch (30cm). Install the fuel inlet hose to the filter outlet using new gaskets and union bolt. Tighten to 22 ft. lbs. 30 Nm). Fig. 11: Install the filter inlet hose to the filter outlet, then tighten to 22 ft. lbs. (29 Nm) 88271g09.gif

  11. Install the charcoal canister to the bracket. Connect the two EVAP hoses to the canister.
  12. Connect the air cleaner hose to the throttle body. Install the air cleaner cap together with the air cleaner hose.
  13. Attach the IAT sensor wiring.
  14. Connect the negative battery cable. Start the engine and check for leaks. Reset any various digital equipment such as radio memory and the clock if necessary.
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Nov 08, 2010 | 1993 Toyota Corolla

1 Answer

Replacing fuel filter

  1. Disconnect fuel hose from fuel filter outlet.
  2. Disconnect fuel hose from fuel filter inlet.
  3. Remove fuel filter bracket retaining bolts, remove fuel filter and bracket as an assembly.
  4. Install in reverse order of removal. Torque union bolts with new gaskets for proper seal.
Torque Value: 22 (29 Nm)

Oct 21, 2010 | 1993 Toyota Camry V6

1 Answer

Fuel line broke leading from fuel filter how can I fix it?

Measure the outside dimension of the line and head down to the auto parts store. If it is rusty where it broke you need to get a piece of fuel line with enough length to bypass the weak spot, usually 2 or 3 feet. Make sure they give you fuel line and not brake line. There is a difference in thickness. Also get 2 compression fittings the same size as the line and some emery cloth and a small tubing cutter.
Cut out the bad piece of line, on a straight section, and clean up the good ends with the emery cloth so the ferrules will slide on easily. Put the nut on first, then the ferrule and the the union. Withthe line butted snug in the union slide the ferrule in snug and tighten the nut. Don't overtighten, it's easy to wreck your joint. Do the same with the new piece of line. Start the car and check for leaks. Tighten nuts that need to be tightened if it's leaking, and you are done.
You shoul be able to do this for about $20-$30. Hope this helps.

Oct 03, 2009 | 1998 Pontiac Sunfire

2 Answers

How to change a fuel pump yourself tip?

The fuel supply and return lines are probably in bad shape, I'd recommend replacing them with the neoprene fuel line replacements, with the quick disconnect, first replace your fuel filter( it's located on the drivers side rear near the rear wheel looks like a canister in the line) again the quick disconnect lines can be used here, it will make your life easier later, these are available at most autopart stores along with the union pieces to run new lines, you can buy the quick disconnects for about $20.00 for 18 inches of new line with the quick disconnect clip on one end and the union pieces to put the line back together. Make sure the fuel tank is near empty, unhook fuel lines from the tank loosen the straps enouph so you can reach up and unplug the sending unit, now carefully loosen the straps( be careful with the straps they can be reused) until you can work the tank out, remember you need to be careful of the fill tube, if you damage it you will need to wrap it in rubber hose more unecessary work if you are careful. BEFORE YOU DROP THE TANK CHECK THE FUSEABLE LINKS, they are only a couple bucks, ALSO REPLACE THE FUEL FILTER 1ST. these items are cheap and could be the cause of your problem, the fuel pump runs about $100 but the work involved is dirty and not fun. Before proforming any repairs like this on your own make sure the vehicle is safely secured on jack stands, the rear has to be up quite a bit to give you room to work under the car. The fuel lines can be very time consuming, but will save you time when you are putting the tank back in after replacing the pump, and heaches down the road.

Aug 28, 2009 | 1992 Buick Century

1 Answer

We don't know where the union piece goes in the fuel filter .

you should be able to see the old filter and it should bolt onto fuel line (metal) one side quick disconnect on the other (plastic)

Jun 19, 2009 | 1993 Buick LeSabre

1 Answer


The filter is tucked in over the fuel tank. Here's how I replaced mine... I put a jack (for a flat tire) under the fuel tank, so I could control how far it dropped. Then I removed the two screws that hold the fuel tank straps. The screws come out, the fuel tank is loose, lower the tank by lowering the jack. Now it is easy to reach the filter. One screw holds it in place. Unscrew it, it comes right out. The tricky part is figuring out how to unplug the fuel lines. Look at the replacement filter, note how the plastic piece inside each fuel line has to be squeezed to remove it. You need to squeeze the old ones the same way to release them. It isn't easy. Squeeze the plastic piece that is holding the hose in place until you can work it out. A few drops of gas will dribble out. The gas is NOT pressurized. Unsnap the old hoses, snap in the new ones (much easier). Screw the new filter into place. Jack the fuel tank back into place. Screw the straps back on. Clip the ground strap in place where the old one was. You're done.

Jun 04, 2009 | 1999 Dodge Grand Caravan

1 Answer

1993 Ford bronco fuel line

if you have enough metal lie left either flar it or use copression unions too tie it back together

May 15, 2009 | 1993 Ford Bronco

1 Answer

Fuel leaking

If it's a 4.0 engine, the filter thing is the fuel pressure regulator (does it have a vacuum hose going to a fitting on the intake manifold?) Depending upon how much material (clean tubing) you have to work with the temporary"fix" is just about the same as the real repair. Cut the line, removing the failed part, and install a new piece of steel tubing, using crimp type unions (they have brass ferrules on both ends that seal permanently to tubing once they are tightened. Sometimes you need to remove a decent length to get to a straight clean area (unions are not recommended to be used on curved sections of tubing.
Or, if you can't do this, cut the tubing right over the leak, slip a piece of high pressure fuel line (rubber) over both ends and fasten with two clamps (made for fuel lines, not for water hose applications) Make sure that rubber hose extends at least one inch past the leaking area.That will get you to a shop! Check the regulator. it's doubtful that both the line and reg are leaking.
Good luck

Jan 02, 2009 | 1990 Jeep Wagoneer Limited

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