Replacing fuel filter

Acura Coupes and Sedans 1986-1993 Repair Guide
Fuel Filter

• REMOVAL & INSTALLATION

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The recommended change interval for the fuel filter on all models is 60,000 miles under normal service. Severe service will require more frequent changing of the fuel filter.
The filter is located in the passengers side of the engine compartment.

CAUTION Before disconnecting any fuel lines, be sure to open the gas tank filler cap to relieve any pressure in the system and wrap a shop towel around the fuel line fitting before opening. Observe all fuel handling precautions.

REMOVAL & INSTALLATION

See Figures 1, 2 and 3

1. Disconnect the negative battery cable.
2. Wrap a shop towel around the fittings and using a proper wrench, slowly loosen the fuel line fittings.
3. Remove the 2 banjo bolts from the fuel lines.
4. Remove the fuel filter clamp retaining bolt and the clamp.
5. Remove the filter from the vehicle.

It is very important that ALL of the fuel line banjo bolt washers be replaced every time the banjo bolts are loosened. If the washers are not replaced the fuel lines will leak pressurized fuel causing the risk of fire or explosion.

1. Install the new filter in position and tighten the clamp mounting bolt to 7 ft. lbs. (10 Nm).
2. Attach the banjo fittings with new washers in place. On Legend and Vigor, tighten the fuel line flare connector to 28 ft. lbs. (38 Nm). On the remaining models, tighten the banjo fitting bolts to 20 ft. lbs. (27 Nm).
3. Start the vehicle and check for leaks.

Fig. Fig. 1: Disconnecting the fuel lines from the fuel filter

Fig. Fig. 2: Fuel filter replacement-1991-93 Integra

Fig. Fig. 3: Fuel filter replacement-Legend and Vigor

Should not change all the fuel line .Cut the bad line fuel and Measure the required distance . and take with you the bad line fuel to Advance Auto Parts . and ask him for new line and fuel filter and Link to connect the line fuel together , make sure no leak . good luck .

Important: There is no service interval for in-line fuel filter replacement. Only replace the in-line fuel filter if it is restricted. 1. Relieve the fuel system pressure. Refer to the 2. Raise the vehicle. 3. Remove the fuel feed quick-connect fitting (4) at the inlet of the in-line fuel filter (3). 4. Remove the threaded fitting at the outlet of the in-line fuel filter (3). 5. Drain any remaining fuel into an approved gasoline container. 6. Inspect the lines for cuts, swelling, cracks, and distortion. Replace the lines as required. 7. Inspect the O-ring on fuel filter outlet pipe for cracks or damage. Replace the O-ring as required. 8. Inspect the fuel vent pipe (2). 9. Inspect the fuel return pipe quick connect fitting (1).

First off you will need to go to a local parts store and get the filter clamp release tool. Then locate the fuel filter under left (drivers) side of the car usually on the frame rail between the fuel tank and drivers door. Remove small locking clips from the filter clamps. Next and use caution and eye protection as fuel line will likely still have some presure. slide clamp release tool into open (filter) side when you get it in position push fuel line and filter together set clamp release tool tight by pushing it toward fuel line then pull on fuel line it should slip right off. Repeat for the fuel line on the other side of the filter. To reinstall simply look for the arrow on the filter and with itr pointing toward the engine push fuel line clamps back onto fuel filter. Replace safety locks turn ing. on and off about 5 times then crank the engine to start.

Fuel Filter REMOVAL & INSTALLATION CAUTION
NEVER SMOKE WHEN WORKING AROUND OR NEAR GASOLINE! MAKE SURE THAT THERE IS NO ACTIVE IGNITION SOURCE NEAR YOUR WORK AREA! 1970-83 Carbureted Engines The fuel filter is located on the right inner fender in the engine compartment. It is a disposable cartridge type.

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.
2. Grasp the hoses near the ends and twist them gently to pull them free from the filter pipes.
3. Pull the filter from the clip and discard.
4. Install the new filter into the clip. Push the hoses onto the filter pipes, and slide the clamps back into position. Start the engine and check for leaks. Fig. 1: Fuel filter - 1970-79
   Fig. 2: Fuel filter - 1980-83
   

1984-86 Carbureted Engines The fuel filter is located on the inside of the frame above the left rear spring front shackle. Changing the filter is VERY awkward. Since it is in-line and below tank level, fuel will pour from the fuel lines when they are disconnected from the filter. The only way of preventing this, is to siphon all of the gasoline from the tank before replacing the filter. Another possible method is to clamp and plug the fuel line, but this is not recommended because of the danger of leaking fuel or damage which could occur to the fuel line when clamped. It would, therefore, be a good idea to run the tank almost dry before changing the filter. Once the tank is dry, disconnect the fuel lines at the filter, unbolt the old filter and install a new one. Reconnect the fuel lines, fill the tank, start the engine and check for leaks. Fig. 3: Fuel filter - 1984-86
Fig. 4: Remove the shield mounting bolts
Fig. 5: Remove the shield, if necessary for fuel filter removal
Fig. 6: Removing fuel filter - always replace fuel line clamps
Fuel Injected Engines WARNING
Never attempt to remove the fuel filter without first relieving the fuel system pressure!

1. Release the fuel pressure from the fuel line as follows:
   1. Remove the fuel pump fuse at the fuse box.
   2. Start the engine.
   3. After the engine stalls, crank the engine two or three times to make sure that the fuel pressure is released.
   4. Turn the ignition switch OFF and reinstall the fuel pump fuse.
2. Loosen the hose clamps at the fuel inlet and outlet lines then slide each line off the filter nipples.
3. Remove the fuel filter.
4. Replace the fuel filter. Always be sure to use new hose clamps. Fig. 7: Fuel filter - 1986-88 VG30i
   Fig. 8: Fuel filter - 1986-88 Z24i
   

Fuel Filter Removal & Installation To Remove:
NOTE: There is no maintenance schedule for fuel filter replacement. Replace the fuel filter if restricted. Inspect the fuel tank internally if you find a restricted fuel filter.
Typical inline fuel filter

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Relieve the fuel system pressure.
3. Raise and safely support the vehicle.
4. Remove or disconnect the following:
   • Quick connect fitting at the fuel filter inlet
   • Fuel filter outlet fitting from the fuel filter while holding the filter fitting with a back-up wrench
   • Fuel filter from the vehicle
   • Fuel line O-ring.

To Install:

1. Position the new fuel filter in the bracket.
2. Install a new plastic retainer on the fuel inlet line.
3. Lubricate the new fuel pipe O-ring with clean engine oil.
4. Install the fuel pipe O-ring.
5. Reconnect the fuel outlet line to the filter by holding the filter with a back-up wrench and tightening the line fitting to 20 ft lbs (27 Nm).
6. Lower the vehicle.
7. Pressurize the fuel system and check for leaks.

The fuel filter is located near the rear of the vehicle, forward or rearward of the fuel tank, depending upon application. There is no service interval for fuel filter replacement. The filter only is replaced if it becomes restricted.

REMOVAL & INSTALLATION Relieve the fuel system pressure at the shrader valve on the fuel rail. For details regarding this procedure, please refer to Fuel System of this information.

1. If not done already, disconnect the negative battery cable.
2. Raise and safely support the vehicle.
3. Clean both fuel feed pipe connections and the surrounding areas at the in-line fuel filter with a clean rag to avoid possible contamination of the fuel system.
4. Using a backup wrench, remove the fuel line fittings from the fuel filter. Most of the models fuel gilter wrench sizes will be 16mm and 20mm.
5. Either disconnect the quick-connect fittings by pushing inward toward the filter and grasping the plastic tab around the connector and pull them apart. Or remove the fuel filter mounting screws, then remove the filter from the vehicle.
6. Discard the fuel line O-rings and replace with new ones during installation.

To install:

Install new O-rings to the fuel line fittings.
Connect the fuel lines to the fuel filter.
Position the filter in the same position it was during removal. Using a backup wrench, tighten the fuel lines to 20-22 ft. lbs. (27-30 Nm).

1. Install the fuel filter mounting screws if used.
2. Lower the vehicle. Install or tighten the fuel filler cap, then connect the negative battery cable.
3. Start the engine and check for leaks. Turn the ignition switch to the ON position for two seconds.Turn the ignition to the OFF position for ten seconds. Turn the ignition to the ON position. Check for leaks.

If the fuel filter is mounted inside the fuel tank at the pump it does not need replacing and is a permanent filter. All you have to do it follow the fuel lines from the fuel tank to the engine. If the filter is mounted in the fuel line you will find it.

1. Relieve the fuel system pressure. For details regarding this procedure, please refer to Section 5 of this manual.
   
2. If not done already, disconnect the negative battery cable.
   
3. Raise and safely support the vehicle.
   
4. Clean both fuel feed pipe connections and the surrounding areas at the in-line fuel filter with a clean rag to avoid possible contamination of the fuel system.
   
5. Using a backup wrench, remove the fuel line fittings from the fuel filter.
   
6. Either separate the quick-connect fittings or remove the fuel filter mounting screws, then slide the fuel filter out of the mounting bracket.
   
7. Discard the fuel line O-rings and replace with new ones during installation.
   

To install:

1. Install new O-rings to the fuel line fittings.
   
2. Connect the fuel lines to the fuel filter.
   
3. Position the filter in the mounting bracket, in the same position it was during removal. Using a backup wrench, tighten the fuel lines to 16 ft. lbs. (22 Nm).
   
4. Install the fuel filter mounting screws.
   
5. Carefully lower the vehicle. Install or tighten the fuel filler cap.
   
6. Connect the negative battery cable.
   
7. Start the engine and check for leaks.
   

Location of the fuel filter


Unfasten the retaining bracket can make removal of the fuel filter easier


Either use a clean rag or compressed air to clean the surrounding areas of the filter


Use a backup wrench to disconnect the fuel line fittings from the filter


Disengage the quick-connect fittings, then remove the filter from the vehicle


In-line fuel filter mounting and related components

It sits in front of the fuel tank.

Here are detailed instructions on the location, removal, and re-installation of your fuel filter. Hope it helps and have a great day!

REMOVAL & INSTALLATION
Carbureted Engines
These vehicles use two replaceable fuel filters. A small one is in the fuel line under the hood; a larger one is located at the rear, just inboard of the left rear wheel.
Whenever the filter(s) are replaced, take great care to avoid the entry of dirt into the lines. Also, pay attention to the correct installation position. It is possible to install the filter backwards.
FRONT
See Figure 2

1. If applicable, disengage the filter or hose from its retaining clip.
2. Using two fuel line clamps, pinch off both fuel lines. Take care not to crush the lines; just clamp them shut.

If the fuel hoses are hard or cracked, it is necessary to replace them.
Fig. 2: Front fuel filter used on carbureted engines

1. Loosen the fuel line clamps and slide them back.
2. Using a twisting motion, remove the fuel lines from the filter.
3. To install, use a new fuel filter and reverse the removal procedures. Start the engine and check for leaks. Correct any leaks immediately.

REAR
See Figures 3, 4, 5 and 6

1. Raise and safely support the rear of the vehicle. Remove the left rear wheel.
2. Remove the bolts securing the filter and its basket to the fuel tank.

Fig. 3: Remove the bolts securing the filter and its basket to the fuel tank ...

1. Push the fuel filter retaining tab and release it from the basket.

Fig. 4: ... then release the basket from the filter

1. Using two fuel line clamps, pinch off both fuel lines. Take care not to crush the lines; just clamp them shut.

Fig. 5: Clamp the fuel lines shut. If the lines are hard, cracked or brittle, they must be replacedIf the fuel hoses are hard or cracked, it is necessary to replace them.

1. Loosen the fuel line clamps and slide them back.
2. Using a twisting motion, pull the fuel lines from the fuel filter; remove the filter.

Fig. 6: After sliding the retaining clamps back, the filter can be removed from the linesTo install:

1. Use a new filter and reverse the removal procedures.
2. Make certain the retaining tabs are engaged when the filter is installed in the holder. Tighten the bolts until snug.
3. Install the left rear wheel. Lower the car to the ground.
4. Start the engine and check for leaks. Correct any leaks immediately.

Fuel Injected Engines
See Figures 7, 8, 9, 10, 11 and 12
The canister fuel filter is located in the engine compartment. When buying the new filter, also buy new washers for the banjo bolts and the service bolt. Failure to replace these washers invites high-pressure fuel leaks. Replacing the washers is required, not recommended.

1. Disconnect the negative battery terminal.
2. The fuel system is under pressure. Release pressure slowly and contain spillage. Observe "no smoking/no open flame" precautions. Have a Class B-C (dry powder) fire extinguisher within arm's reach at all times.
3. Disconnect the banjo bolts and/or threaded fuel line fitting from the fuel filter. Use of a flare nut or line wrench is recommended for disconnecting and attaching this fitting.

Fig. 7: Fuel filter used on fuel injected Accords through 1989 Fig. 8: Fuel filter on 1990-93 fuel injected Accords Fig. 9: Fuel filter used on fuel injected Preludes through 1991

1. Loosen the fuel filter clamp bolt, then remove the filter.

To install:

1. Install the new filter and secure the clamp bolt.
2. The upper and lower washers on each banjo bolt and the washer on the service bolt MUST be replaced whenever the bolts are loosened. Install the washers and banjo bolts. Tighten the banjo bolts to 16 ft. lbs. (22 Nm) on all models except 1992-95 Preludes. On these models, tighten the bolt to 20 ft. lbs. (28 Nm). If applicable, tighten the threaded fuel line fitting to 27 ft. lbs. (37 Nm).

Fig. 10: Fuel filter used on 1992-95 Preludes Fig. 11: Fuel filter used on 1994-95 4-cylinder AccordsIt will be necessary to use a crow's foot attachment on a torque wrench to properly tighten the threaded fuel line fitting.

1. Tighten the service bolt to 9 ft. lbs. (12 Nm).
2. Start the engine and check for leaks. The engine may crank longer than normal until full fuel pressure is developed. Correct any leaks immediately.

Fig. 12: V-6 Accord fuel filter