Had the engine in my 1985 cadillac eldorado rebuilt at my auto parts store. it is a 4100 gas engine. they took the engine out and put it back in. unfortunately for me they did not tag the vacuum lines and when they cleaned the engine compartment they destroyed the factory vacumm diagram decal. the car is smoged in california. they gave me a partial refund for the work but refused to correct the vacuum problem. i have looked at several emission manualsbut they do not show very good diagrams. the 4100 uses a dual injector tbi systems. i need a good vacuum hose routing diagram. HELP PLEASE

Here are the vacuum diagrams for a 1985 cadillac Eldorado to help assist you, there are two different vacuum diagrams for that year and engine depending on if the engine has a TVS (Thermal Vacuum Switch) or not. The "THERM AC" is to the
"Thermostatic Air Cleaner". Let me know if you require any further assistance.

Yes routing diagrams are hard to read, see if you can find someone who has the same car or a used car dealer and get pictures of the engine, digital is best you can blow them up on your computer, hope this helps

The 4.1 is junk, i loved my 1982 to 85 eldos but the motors were junk very under powered ,cadillac replaced a lot of them because the cams would ware out , it happend to me 3 times