1988 Ford Bronco 5.0 Thermactor Diagram - Air Control Valve & Check Valves

This document is a single line-art schematic illustration showing the Thermactor (secondary air injection) system components mounted on an engine, as filed for a 1988 Ford Bronco with a 5.0L engine. Two callouts identify parts on the drawing: an air control valve (labeled with degraded text reading "AII CONTROL VAVE") located at the top of the assembly with a vacuum diaphragm on top and hoses attached, and two check valves indicated by leader lines pointing to fittings on air tubes near the intake/exhaust area of the engine. The illustration bears the figure identification number A18877-A in the lower right corner. There is no other text, table, torque specification, or wiring information in the image. A reader can use this diagram to visually locate the air control valve and the check valves on the engine and understand their physical arrangement relative to the air hoses and hard tubes of the Thermactor emissions system. The document itself does not state a year, model, or engine applicability; that attribution comes solely from the uploader's filename.