gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Fuel Feed and Fuel Return Pipe Purge|Page 5619 > < Fuel Feed and Fuel Return Pipe Purge
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Fuel Filter: Service and Repair
Fuel Filter Assembly

FUEL FILTER ASSEMBLY REPLACEMENT

REMOVAL PROCEDURE

1. Drain the fuel from the fuel filter housing. Refer to Water-in-Fuel Draining Procedure.
2. Disconnect the fuel heater and water-in-fuel sensor harness connectors.
3. Disconnect the fuel hoses from the fuel filter/heater element housing.
4. Disconnect electrical and vacuum lines from:

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EGR valve vent solenoid

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EGR valve vacuum sensor

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EGR valve solenoid

5. Remove bolts retaining sensor/bracket assembly.
6. Remove the fuel filter bracket-to-valve cover bolts.
7. Remove the filter/heater element housing.
8. Remove the fuel filter bracket from the fuel filter/heater element housing.
9. Spin off the fuel filter from the fuel filter/heater element housing.

10. Inspect the fuel filter and replace if necessary.

INSTALLATION PROCEDURE

1. Install the fuel filter to the fuel filter/heater element housing.

NOTE:  Refer to Fastener Notice in Service Precautions.

Fuel Feed and Fuel Return Pipe Purge|Page 5619 > < Fuel Feed and Fuel Return Pipe Purge