I get this whistle noise from the air cleaner on my 1985 E350 460 4 barell carb depends on load, rpm. I know it is from there cause I take the lid off it don't whistle (it roars). I replaced the gasket between it and the carb, new air filter and no matter how tight I get the wing nut it don't go away. What's up with that? It is a van so no room for any other air filter I know of, it is the old round type. Hoses look ok going to it. Dave
- posted
18 years ago