Vacuum Routing Diagrams — Ford F-150 1987-1991

Technical Reference

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

Vacuum Routing

• EFI engine vacuum line routing diagram identifying MAP sensor 9F479, EGR valve 9H473, EVP sensor 9G428, check valve 9A995, and the 9E453 vacuum reservoir coffee can.