GM Service Manual Online
For 1990-2009 cars only
Makes
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GMC_Truck
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2008
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TopKick C-Series (Conventional) C4/C5
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Diagnostic Navigation
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Vehicle Diagnostic Information
🢒 Water in Fuel Indicator Sensor Replacement
Removal Procedure
Disconnect the water-in-fuel sensor electrical connector (1) from the engine wiring harness electrical connector.
Remove the water-in-fuel sensor (1) from the fuel filter.
Installation Procedure
Important:
The water-in-fuel sensor must only be hand tightened.
Install the water-in-fuel sensor (1) to the fuel filter.
Connect the water-in-fuel sensor electrical connector (1) to the engine wiring harness electrical connector.
Prime the fuel system. Refer to
Fuel System Priming