Like @AussieHJ6X says, it's not a critical component. If you read the Emissions Manual (click the Resources tab at the top the Mud web page to find all the manuals), it'll show you that it helps the carb draw in warm air (from next to the exhaust manifold) on start up to help the engine warm up faster. In my experience the vacuum system to run that is always broken and there's no direct replacement. The round thing on top of the air cleaner lid directly above that hose is part of it and it's probably worthwhile to disconnect the vacuum hose going to it for now, as it's probably drawing hot air 100% of the time.yeah those ones, think ill go see if i can get a decent articulating wrench at harbor freight tomorrow, and ill pick up a couple extras to keep in the rig. I did just pull the whole air cleaner bottom off as well (probably will do valve cover gasket and check those this weekend).
Are folks replacing this bit that goes into the elbow toward the engine? if so what to replace with. I dont even know what to search for to find this. Also, found a mouse nest in it.
ordering vac hoses tonight - research says 3mm and 5.5mm, think theres any difference in where i order from? It looks like specter offroad (holy crap i cant believe they own that domain name) and HPS performance have both been mentioned before (hps has 3.5mm - ive heard that they are good too). Does it matter?
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The Toyota OEM vac hoses are my favorite, the fit is perfect. I've also used Belmetric for metric hoses too, and they're fine.

hopefully that wasnt foreshadowing... Oh and I found 2 hidden keys!!