Vacuum Routing Diagrams — Ford Bronco 1978-1979

Technical Reference

Member-uploaded diagrams & documents for this generation. AI-classified; community-verified where badged.

Vacuum Routing

• 1979 Ford Bronco & F100-F350 Vacuum Distribution Diagram - Hose Routing
  This page (page 45 of a multi-page Ford truck reference set) is titled "Vacuum Distribution" and presents a schematic diagram of engine vacuum routing. The diagram shows a multi-port engine fitting (vacuum…
• 1979 Ford Bronco/F100-F350 Deluxe Heater & Heater-A/C Vacuum System Diagram
  This document is page 43 of a Ford factory reference set (filed as '1979 Bronco F100 through F350') showing the 'Deluxe Heater and Heater-A/C Vacuum System' vacuum routing diagram. It illustrates how engine vacuum from…
• 1978-79 Ford F100-F350 Bronco Heater/AC Vacuum System Diagram & Test Chart
  This page from a Ford factory reference booklet explains the heater and air conditioner vacuum system used on 1978 F-100 through F-350 trucks and the Bronco. It lists the system's major components (vacuum-actuated…
• 1978 Ford 400 V8 Pickup Vacuum Diagram - Federal Auto Trans (Figs 37-38)
  This page (3-91) is from a 1978 Exhaust Emission System reference section titled 'Ford Motor Co. Vacuum Diagrams (Cont.)', with an 'Emission Control' tab on the margin. It contains two vacuum hose routing…
• 1978 Ford 400 V8 Vacuum Diagram - Pickup & Bronco California Auto Trans
  This is page 3-92 from a 1978 Exhaust Emission System reference (Ford Motor Co. Vacuum Diagrams, continued), showing two labeled vacuum-routing illustrations for the 400 cubic-inch V8. Figure 39 covers the 400" V8…
• 1986 Ford E-250 5.8L 351W 4V Vacuum Hose Routing & Emissions Decal Diagram
  This document is a scan of a Ford Motor Company underhood emissions/vehicle information decal, annotated by the uploader as coming from the hood of a 1986 E-250 with a 351W (5.8L) 4V H.O. engine. The left portion gives…
• Ford 400 CID (6.6L) Vacuum Diagram - Calibration 9-62M-R10, 10-5-78
  This document is a factory emissions/vacuum hose routing schematic for a Ford 6.6L (400 CID) V8 engine, identified by calibration code 9-62M-R10 and dated 10-5-78. The diagram shows the vacuum hose connections between…