Mazda CX 7. Manual - part 122

FUEL SYSTEM [L3 WITH TC]

01-14–9

01-14

16. Install in the reverse order of removal.
17. Complete the “AFTER REPAIR PROCEDURE”. (See01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].)

Rivet Removal Note

Caution

• Be careful not to damage the fuel tank when removing the rivet. If the fuel tank is damaged, it may

cause fuel leakage.

Note

• The insulator is installed using rivets.

• When resin stalling the rivet, install the same rivet or M5 bolt and nut.

1. Push out the mandrel using a hammer and punch

(2—2.8 mm {0.08—0.11 in} diameter).

2. Remove the flange using a drill (5 mm {0.20 in} drill bit).

Fuel-filler Pipe Removal Note

1. Remove the rear tire (LH).
2. Remove the mudguard (LH).
3. Remove the air filter.
4. Remove the fuel-filler pipe.

Joint Hose Installation Note

1. Install the joint hose and clamp as shown in the

figure.

HAMMER

INSULATOR

FUEL TANK

MANDREL

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DRILL

FLANGE

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JOINT HOSE

CLAMP
TIGHTENING AREA

VIEW A

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FUEL SYSTEM [L3 WITH TC]

01-14–10

Breather Hose Installation Note

1. Install the breather hose and clamp as shown in

the figure.

End Of Sie

WM: FUEL SHUT-OFF VALVE

FUEL SHUT-OFF/ROLLOVER VALVE INSPECTION[L3 WITH TC]

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Caution

• Disconnecting/connecting the quick release connector without cleaning it may cause damage to

the fuel pipe and quick release connector. Always clean the quick release connector joint area
before disconnecting/connecting using a cloth or soft brush, and make sure that it is free of
foreign material.

Note

• This inspection is for fuel shut-off valve and rollover valve integrated in the fuel tank.

1. Disconnect the quick release connector and the fuel pump unit connector. (See01-14-11 FUEL PUMP UNIT

REMOVAL/INSTALLATION[L3 WITH TC].)

2. Remove the fuel tank with the fuel pump unit. (See01-14-7 FUEL TANK REMOVAL/INSTALLATION[L3 WITH

TC].)

3. Plug the port as shown in the figure.
4. Level the fuel tank.

5. Blow through port B and verify that there is airflow

from port A.

• If there is no airflow, replace the fuel tank.

• If there is airflow, turn the fuel tank upside

down, and proceed to Step 6.

6. Blow through port B and verify that there is no

airflow from port A.

• If there is airflow, replace the fuel tank.

End Of Sie

WM: FUEL PUMP

VIEW B

CLAMP
TIGHTENING AREA

BREATHER HOSE

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FUEL PUMP UNIT

PLUG

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FUEL PUMP UNIT

PLUG

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FUEL SYSTEM [L3 WITH TC]

01-14–11

01-14

FUEL PUMP UNIT REMOVAL/INSTALLATION[L3 WITH TC]

id011439800900

Warning

• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and

damage. Fuel can also irritate skin and eyes. To prevent this, always complete the “Fuel Line
Safety Procedure”.

• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and

damage. Fuel can also irritate skin and eyes. To prevent this, before performing the fuel pump unit
removal/installation, always complete the “Fuel Leak Inspection After Fuel Pump Unit
Installation”.

• A person charged with static electricity could cause a fire or explosion, resulting in death or

serious injury. Before draining fuel, make sure to discharge static electricity by touching the
vehicle body.

Caution

• Because the fuel tank is constructed such that the fuel level is higher than the installation surface

of the fuel pump, fuel leakage could occur. If the fuel gauge indicates a fuel level of half or more,
perform the following Steps 1-6 to drain approx. 10 L {11 US gal, 8.8 lmp gal} of fuel.

• Disconnecting/connecting the quick release connector without cleaning it may possibly cause

damage to the fuel pipe and quick release connector. Always clean the quick release connector
joint area before disconnecting/connecting using a cloth or soft brush, and make sure that it is
free of foreign material.

• To prevent the SST from coming off the fuel pump cap while performing the work, always perform

the removal/installation procedure with 2 people. One person presses the SST against cap from
directly above, while the other person rotates the SST.

1. Complete the “BEFORE REPAIR PROCEDURE”. (See01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH

TC].)

2. Remove the rear seat cushion.
3. Remove the service hole cover.

4. Disconnect the quick release connector

connected to the fuel pump unit.

5. Connect a long hose to the disconnected quick

release connector and drain the fuel into a
container used for collecting gasoline.

SERVICE HOLE COVER

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HOSE

FRONT

QUICK RELEASE
CONNECTOR

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FUEL SYSTEM [L3 WITH TC]

01-14–12

6. Start the fuel pump using the following procedure.

Using M-MDS

1. Connect the M-MDS to the DLC-2.
2. Using the simulation function “FP”, start the

fuel pump.

Without using M-MDS

1. Remove the fuel pump relay.

Caution

• Short the specified terminals because

shorting the wrong terminal of the main
fuse block may cause malfunctions.

2. Using a jumper wire, short fuel pump relay

terminals C and D in the main fuse block.

3. Connect the negative battery cable and

operate the fuel pump.

Caution

• The fuel pump could be damaged if it is

operated (fuel pump idling) while there is
no fuel in the fuel tank. Verify the amount
of fuel being discharged from the hose
and stop operation of the fuel pump
when essentially no fuel is being
discharged.

7. When essentially no fuel is being discharged, stop the fuel pump.

Using M-MDS

1. Using the simulation function “FP”, stop the fuel pump.

Without using M-MDS

1. Turn the ignition switch to LOCK position to stop the fuel pump.
2. Disconnect the jumper wire from the check connector.

8. Disconnect the negative battery cable.
9. Remove the fuel pump bracket installation screws.

10. Remove in the order indicated in the table.

11. Install in the reverse order of removal.
12. Complete the “AFTER REPAIR PROCEDURE”. (See01-14-4 AFTER REPAIR PROCEDURE[L3 WITH TC].)

End Of Sie

DLC-2

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MAIN FUSE BLOCK
(FUEL PUMP RELAY)

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acxuuw00000289

Connector

Quick release connector
(See01-14-19 QUICK RELEASE CONNECTOR
REMOVAL/INSTALLATION[L3 WITH TC])

Fuel pump unit

Packing

Fuel pump bracket

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