Need 1968 Vacuum diagram | Cadillac Owners Forum Apr 25, 2013My 1968 Deville Convertible arrived missing mucho vacuum hoses. eg. Heater control valve bypassed, manifold vacuum open, carb vacuum open, etc. Does anyone have a copy of or a link to the vacuum diagram? The car has A/C (non-functional, of course) but no air ride. thanks. SOLVED: Vacuum diagram for 1970 cadillac deville - Fixya well it sure didn't help. the 1970 cadillac has a 472 engine and a rochester 4 bbl carb. there are 2 vacuum ports on the back of this carb. i need to know where the vacuum lines go to from all the ports on the carb. i also need to know where the transmission gets its vacuum supply from for the vacuum VACUUM DIAGRAMS Repair Guide - AutoZone Print Following is a listing of vacuum diagrams for most of the engine and emissions package combinations covered by this guide. Because vacuum circuits will vary based on various engine and vehicle options, always refer first to the vehicle emission control information label, if present. Related searches for cadillac 472 vacuum diagram cadillac 472 enginecadillac 472 motorcadillac 472 specscadillac 472 engine for sale472 cadillac engine specs472 cadillac performancecadillac 472 500 enginecadillac 472 engine craigslist