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Mazda CX-9 Grand Touring. Manual - part 407

1. Level the vehicle.

2. Complete the "BEFORE SERVICE PRECAUTION". (See BEFORE SERVICE PRECAUTION [MZI-

3.7].)

3. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZI-3.7] .)

4. Remove the engine cover. (See ENGINE COVER REMOVAL/INSTALLATION [MZI-3.7] .)

5. Remove the fuel line schrader valve cap.

6. Connect a long hose to the disconnected schrader valve cap and drain the fuel into a container used for

collecting gasoline.

7. Start the fuel pump using the following procedure.

Fig. 26: Identifying Schrader Valve Cap & Fuel Distributor
Courtesy of MAZDA MOTORS CORP.

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 3/4 or more, perform
the following Steps 3 - 8 to drain 10-15 L {2.7-3.9 US gal, 2.2-3.2 Imp
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.

2008 Mazda CX-9 Grand Touring

2008 ENGINE Fuel System (MZI-3.7) - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:04:45 AM

Page 22

Using M-MDS

1. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZI-3.7] .)

2. Connect the M-MDS to the DLC-2.

3. Using the simulation function "FP", start the fuel pump.

Fig. 27: Connecting M-MDS To DLC-2
Courtesy of MAZDA MOTORS CORP.

Without using M-MDS

1. Remove the fuel pump relay.

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:



Short the specified terminals because shorting the wrong
terminal of the main fuse block may cause malfunctions.

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.

2008 Mazda CX-9 Grand Touring

2008 ENGINE Fuel System (MZI-3.7) - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:04:45 AM

Page 23

8. When essentially no fuel is being discharged, stop operation of the fuel pump.

9. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZI-3.7] .)

10. To remove the rear heat duct No.3, remove the following parts:

1. Second-row seat (LH) (See SECOND-ROW SEAT REMOVAL/INSTALLATION .)

2. Edge cover (See LONG SLIDER REMOVAL/INSTALLATION .)

3. Long slider cover (See LONG SLIDER REMOVAL/INSTALLATION .)

4. Remove the rear heat duct No.3. (See REAR HEAT DUCT COMPONENT

REMOVAL/INSTALLATION .)

11. Remove in the order indicated in the table.

12. Install in the reverse order of removal.

13. Complete the "AFTER SERVICE PRECAUTION". (See AFTER SERVICE PRECAUTION [MZI-

3.7].)

2WD

Fig. 29: Identifying Fuel Pump Unit, Quick Release Connector, Service Hole Cover & Torque
Specifications (2WD)
Courtesy of MAZDA MOTORS CORP.

Fig. 28: Identifying Main Fuse Block (Fuel Pump Relay)
Courtesy of MAZDA MOTORS CORP.

2008 Mazda CX-9 Grand Touring

2008 ENGINE Fuel System (MZI-3.7) - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:04:45 AM

Page 24

AWD

Fig. 30: Identifying Fuel Pump Unit, Quick Release Connector, Service Hole Cover & Torque
Specifications (AWD)
Courtesy of MAZDA MOTORS CORP.

FUEL PUMP UNIT DISASSEMBLY/ASSEMBLY [MZI-3.7]

1. Disassemble in the order indicated in the table.

2. Assemble in the reverse order of disassembly.

Fig. 31: Identifying Fuel Filter Body, Pressure Regulator, O-Ring & Fuel Pump
Courtesy of MAZDA MOTORS CORP.

FUEL PUMP UNIT INSPECTION [MZI-3.7]

CAUTION:



It is normal to hear the fuel pump operating when the ignition switch

2008 Mazda CX-9 Grand Touring

2008 ENGINE Fuel System (MZI-3.7) - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:04:45 AM

Page 25

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