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Home >> Volvo >> 2009 >> S80 Base >> Repair and Diagnosis (Single Page) >> Drivelines & Axles >> Differentials & Drive Axles >> Differential Electronic Module (DEM) - Specifications, Other >> Vehicle Communication Information, Differential Electronic Module (DEM) (2009-12) >> Description Of Component/Function Activation >> Component/Function >> Electric Feed Pump
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Electric Feed Pump

The feed pump is activated and builds up a basic pressure in the coupling.

A low humming noise can be heard from the feed pump when it is activated.

Note that the feed pump may sound like it's running but in certain cases it only oscillates.

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