Idle Speed Control Valve Compatible with Chevrolet for Astro 1993-1995 Idle Air Control Valve IAC Auto Replacement Parts 17112648
SZYNBQ
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 return spring is made of selected spring steel wire with force treatment; after one hundred thousand cycles its spring constant change remains below five percent, ensuring the plunger returns to the preset mechanical position when control signal or power supply is lost. After removing the old unit, use a clean cloth to temporarily cover the open intake port to prevent debris from falling into the intake manifold; remove the cover just before installing the replacement part, ensuring no fibers remain on the sealing surface. Friendly Reminder: To ensure accurate selection, please compare the product images and specifications before ordering to confirm that the parts match your vehicle model. If you have any questions before or after placing your order, please customer service. We will provide detailed answers and assist you in finding the appropriate solution., Manufacturer: SZYNBQ
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