Details

• Brand:

  

  

• SKU:

  AL3Z-19A566-A

• Other Names:

  Engine Vacuum Reservoir, Reservoir Vacuum

• Description:

  This genuine Ford engine vacuum reservoir is the stored-vacuum canister for the 2010-2021 Ford F-150 equipped with four-wheel drive. Ford catalogs it as an Engine Vacuum Reservoir. Mounted in the engine bay and connected into the vacuum supply line, the reservoir banks a volume of engine manifold vacuum so the truck has a reliable reserve on demand even when engine vacuum drops off under acceleration or heavy load. On the 4WD F-150 that reserve feeds the Integrated Wheel End (IWE) actuators at the front hubs, which use vacuum to lock and unlock the front axle for two-wheel and four-wheel drive operation, and it also supports other vacuum-actuated functions. A cracked reservoir, a leaking check valve, or a split supply hose bleeds the reserve away, and the driver typically hears a loud grinding or crunching noise from the front hubs on acceleration, notices four-wheel drive that engages roughly or will not engage, feels a hissing vacuum leak, or sees related driveline behavior. Installing this correct factory reservoir restores a sealed vacuum reserve so the IWE hubs and other vacuum systems operate as designed. Confirm the four-wheel-drive application and hose routing for your F-150 before installation so the reservoir and its fittings match your truck.

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