Fuel Supply System (V6): Removal & Installation Honda Accord VIII

Fuel Line/Quick-Connect Fitting Removal

Note. Before you work on the fuel lines and fittings, read the Fuel Line/Quick-Connect Fitting Precautions (see FUEL LINE/QUICK-CONNECT FITTING PRECAUTIONS ).

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1. If equipped, remove the quick-connect fitting cover from the fuel line. Raise the cover (A) from the fuel line (B), and remove it as shown in illustration.
2. Relieve the fuel pressure (see «FUEL PRESSURE RELIEVING»(ref-423686-S00692949972011092800000) ).
3. Check the fuel quick-connect fittings (A) for dirt, and clean them if needed.
4. Place a rag or shop towel over the quick-connect fitting. Hold the connector (A) with one hand, and squeeze the retainer tabs (B) with the other hand to release them from the locking tabs (C). Pull the connector off. NOTE: Be careful not to damage the line (D) or other parts. Do not use tools. If the connector does not move, keep the retainer tabs pressed down, and alternately pull and push the connector until it comes off easily. Do not remove the retainer from the line; once removed, the retainer must be replaced with a new one.
5. Check the contact area (A) of the line (B) for dirt or damage. If it is dirty, clean the connector with a pressure washer, and dry it with the compressed air. If it is damaged, replace the fuel filter or the fuel feed line.
6. To prevent damage and keep foreign matter out, cover the disconnected connector and line ends with plastic bags (A). NOTE: The retainer cannot be reused once it has been removed from the line. Replace the retainer when: replacing the fuel rail. replacing the fuel line. replacing the fuel pump. replacing the fuel filter. replacing the EVAP canister. replacing the fuel fill pipe. replacing the fuel tank. it has been removed from the line. it is damaged.

Fuel Line/Quick-Connect Fitting Installation

Note. Before you work on the fuel lines and fittings, read the Fuel Line/Quick-Connect Fitting Precautions (see FUEL LINE/QUICK-CONNECT FITTING PRECAUTIONS ).

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1. Check the contact area (A) of the line (B) for dirt or damage, and clean it if needed.
2. Insert a new retainer (A) into the connector (B) if the retainer is damaged, or after: replacing the fuel rail. replacing the fuel line. replacing the fuel pump. replacing the fuel filter. replacing the EVAP canister. replacing the fuel fill pipe. replacing the fuel tank. removing the retainer from the line. Use the same manufacturer retainer and the same size when the replacing the retainer (see «FUEL LINE/QUICK-CONNECT FITTING PRECAUTIONS»(ref-423686-S34846378202011092800000) ).
3. Before connecting a new fuel tube/quick-connect fitting assembly (A), remove the old retainer (B) from the mating line.
4. Align the quick-connect fittings with the line (A), and align the retainer locking tabs (B) with the connector grooves (C). Then press the quick-connect fittings onto the line until both retainer tabs lock with a clicking sound. NOTE: If it is hard to connect, put a small amount of new engine oil on the line end. Connection with new retainer Connection with new retainer: Fuel fill neck tube (PZEV model) Connection to new fuel line Connection to new fuel line: Fuel fill neck tube (PZEV model) Reconnection to existing retainer Reconnection to existing retainer: Fuel fill neck tube (PZEV model)
5. When you reconnect the connector with the old retainer, make sure the connection is secure and the tabs (A) are firmly locked into place; check visually and also by pulling the connector (B). When you replace the fuel line with a new one, make sure you remove the ring pull (C) upwards after you confirm the connection is secure. NOTE: Before you remove the ring pull, make sure the fuel line connection is secure. If the connection is not secure, the ring pull could break when you try to remove it. Connection to new fuel line
6. Reconnect the negative cable to the battery, and turn the ignition switch to ON (II) (but do not operate the starter motor). The fuel pump runs for about 2 seconds, and fuel pressure rises. Repeat this two or three times, and make sure there are no fuel leakage.
7. If equipped, install the quick-connect fitting cover. Set the groove of the cover (A) on the fuel line (B) as shown in illustration, then install it. Make sure the cover is firmly locked in place.

Fuel Tank Unit Removal and Installation

Special Tools Required

Fuel Sender Wrench 07AAA-S0XA100

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1. Relieve the fuel pressure (see «FUEL PRESSURE RELIEVING»(ref-423686-S00692949972011092800000) ).
2. Remove the fuel fill cap.
3. Remove the rear seat cushion (see «SEAT CUSHION - 2-DOOR»(ref-423729-S01976868082011092800000) ).
4. Remove the access panel (A) from the floor.
5. Disconnect the fuel tank unit 4P connector (B).
6. Disconnect the quick-connect fitting (C) from the fuel tank unit.
7. Using the special tool, loosen the locknut (A).
8. Remove the locknut (A) and the fuel tank unit (B).

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1. Temporarily attach a new base gasket (A) to the fuel tank unit (B), then insert the fuel tank unit partially into the fuel tank. NOTE: Be careful not to damage the new base gasket. Be careful not to bend the fuel gauge sending unit. Do not coat the base gasket with oil.
2. Transfer the base gasket (A) from the fuel tank unit to the fuel tank.
3. Align the marks (B) on the fuel tank and fuel tank unit, then insert the fuel tank unit into the fuel tank until the fuel tank unit rests on top of the base gasket. NOTE: To avoid a fuel leak, check the base gasket, visually or by hand, to make sure it is not pinched.
4. Tighten a new locknut (A) by hand with a new locknut plate (B). NOTE: Before tightening, align the mark (C) on the locknut with the start of the threads (D).
5. Using the special tool, tighten the locknut to the specified torque. NOTE: After tightening, make sure the marks (A) are still aligned. After installation, check the base gasket, visually or by hand, to make sure it is not pinched.
6. Connect the fuel tank unit 4P connector, then connect the quick-connect fitting.
7. Reconnect the negative cable to the battery, and turn the ignition switch to ON (II) (but do not operate the starter motor). The fuel pump runs for about 2 seconds, and fuel pressure rises. Repeat this two or three times, then make sure there are no fuel leaks.
8. Install the access panel.
9. Install the rear seat cushion (see «SEAT CUSHION - 2-DOOR»(ref-423729-S01976868082011092800000) ).
10. Install the fuel fill cap.

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1. Remove the fuel tank unit (see «FUEL TANK UNIT REMOVAL AND INSTALLATION»(ref-423686-S04070667502011092800000) ).
2. Remove the reservoir (A).
3. Remove the bracket (B).
4. Remove the fuel pressure regulator (C).
5. Install the parts in the reverse order of removal with new O-rings (D) and a new bracket. When installing the fuel tank unit, align the marks on the unit and the fuel tank (see «INSTALLATION»(ref-423686-S36884178442011092800000) ). NOTE: Coat the O-rings with clean engine oil; do not use any other oils or fluids. Do not pinch the O-rings during installation. Use all the new parts supplied in the pressure regulator replacement kit.

Fuel Filter Replacement

The fuel filter should be replaced whenever the fuel pressure drops below the specified value (see FUEL PRESSURE TEST ), after making sure that the fuel pump and the fuel pressure regulator are OK.

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1. Remove the fuel tank unit (see «FUEL TANK UNIT REMOVAL AND INSTALLATION»(ref-423686-S04070667502011092800000) ).
2. Remove the fuel filter set (A).
3. Check these items before installing the fuel tank unit: When connecting the wire harness (B), make sure the connection is secure and the connectors are firmly locked into place. When installing the fuel gauge sending unit (C), make sure the connection is secure and the connector is firmly locked into place. Be careful not to bend or twist it excessively.
4. Install the parts in the reverse order of removal with new O-rings (D) and a new bracket (E). When installing the fuel tank unit, align the marks on the unit and the fuel tank (see «INSTALLATION»(ref-423686-S36884178442011092800000) ). NOTE: Coat the O-rings with clean engine oil; do not use any other oils or fluids. Do not pinch the O-rings during installation. Use all the new parts supplied in the fuel filter replacement kit.

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1. Remove the fuel tank unit (see «FUEL TANK UNIT REMOVAL AND INSTALLATION»(ref-423686-S04070667502011092800000) ).
2. Remove the fuel level sensor (fuel gauge sending unit) (A) from the fuel tank unit (B).
3. Check these items before installing the fuel tank unit: When connecting the wire harness, make sure the connection is secure and the connector (C) is firmly locked into place. When installing the fuel gauge sending unit, make sure the connection is secure. Be careful not to bend or twist it excessively.
4. Install the parts in the reverse order of removal. When installing the fuel tank unit, align the marks on the unit and the fuel tank (see «INSTALLATION»(ref-423686-S36884178442011092800000) ).

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1. Drain the fuel tank (see «FUEL PRESSURE TEST»(ref-423686-S34421971802011092800000) ).
2. Reinstall the fuel tank unit without connecting the fuel tank unit 4P connector and the quick-connect fitting (see «INSTALLATION»(ref-423686-S36884178442011092800000) ).
3. Remove the fuel fill pipe cover (see «FUEL FILL PIPE REMOVAL/INSTALLATION»(ref-423686-S19345177262011092800000) ).
4. Disconnect the quick-connect fittings (A) (see «FUEL LINE/QUICK-CONNECT FITTING REMOVAL»(ref-423686-S08987606702011092800000) ). On all models except PZEV, disconnect the fuel fill tube (B) from the fuel fill pipe. Slide back the clamps, then twist the hose as you pull to avoid damaging them). All models except PZEV PZEV model
5. Raise the vehicle on a lift.
6. Disconnect the hose (A) from the EVAP canister.
7. Remove the hose (B) from the clamp (C). NOTE: Be careful not to damage the hose.
8. Remove the exhaust pipe (see «EXHAUST PIPE AND MUFFLER REPLACEMENT»(ref-423685-S04087016552011092800000) ).
9. Remove the right side middle floor undercover (see «MIDDLE FLOOR UNDERCOVER REPLACEMENT»(ref-423713-S09280861522011092800000) ).
10. Remove the fuel tank protector (A).
11. Remove the right parking brake cable mounting bolts (see «PARKING BRAKE CABLE REPLACEMENT»(ref-423677-S22202247502011092800000) ).
12. Place a jack or other support under the fuel tank (B).
13. Remove the strap bolts (C) and the straps (D).
14. Remove the fuel tank.
15. Install the parts in the reverse order of removal. NOTE: New fuel tanks have ring pull (E) at the fuel vapor hose connector (F). When you connect the hose and confirm that the connection is secure, remove the ring pull by pulling it down. Before connecting the fuel fill pipe and the quick-connect fitting, check for dirt, and clean it if needed, taking care not to damage the fuel fill pipe and other parts. When installing the fuel tank protector, make sure to insert it into the clip (G) in the direction shown in illustration.

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1. Drain the fuel tank (see «FUEL PRESSURE TEST»(ref-423686-S34421971802011092800000) ).
2. Remove the fuel fill cap.
3. Remove the left rear wheel.
4. Remove the fuel fill pipe cover (A).
5. Disconnect the quick-connect fittings (A) (see «FUEL LINE/QUICK-CONNECT FITTING REMOVAL»(ref-423686-S08987606702011092800000) ). On all models except PZEV, disconnect the fuel fill tube (B) from the fuel fill pipe. Slide back the clamp, then twist the hose as you pull to avoid damaging them). All models except PZEV PZEV model
6. Remove the fuel fill pipe (C).
7. Install the parts in the reverse order of removal. NOTE: Before connecting the fuel fill pipe and the quick-connect fitting, check for dirt, and clean it if needed, taking care not to damage the fuel fill pipe and other parts.
8. After installing the parts, measure clearance (A) between the fuel filler pipe cover (B) and the left rear damper spring outline (C) at the point that is above 5.9 in (150 mm) to 8.2 in (210 mm) from the left rear damper spring lower mount (D). Make sure the clearance (A) is more than 0.81 in (20.7 mm). NOTE: When measuring the clearance, raise the vehicle on a lift.