Idle Control Valve Compatible with Mercury for Marauder 2004 4.6L for V8 Idle Air Control Valve IAC Valve Auto Replacement Parts 1S7Z-9F715-AA
BYHWAEE
When the engine experiences a drop in idle speed when the cooling fans engage, the electrical load from fan startup pulls engine rpm downward; this component adds bypass air before the fans fully engage, preventing the rpm dip that causes noticeable hesitation. The precision-ground valve seat and plunger tip geometry are matched to create a metal-to-metal line contact seal when fully closed; this design keeps leakage within a very small range while still allowing fine air metering through the gap between tapered surfaces at small openings. Before removing the old part, disconnect the battery negative terminal and let the engine cool; take a photo of the vacuum hose connections and component orientation for reference, then loosen the two mounting bolts and pull the unit straight out without twisting. If you encounter any problems during the purchase process, please contact customer service promptly. We will do our best to help you resolve your issues and provide suitable solutions. Friendly Reminder: We recommend that you carefully review our product images and specifications before ordering to ensure that the part is suitable for your vehicle model., Manufacturer: BYHWAEE-853
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