Dropped set screw into IMS bearing flange hole

[BYprodriver]

Maybe you can "Flood" it out by raising the front of the car/ engine & pouring new oil in until it runs out the IMS hole. Set screw probably won't fall out, but should get washed to the IMS hole.

[Jamesp]

So if I were desperate, and I would be, I'd use a dental mirror and a flashlight to spot that sucker. If I could see it, I'd go for a long piece of tagon tube attached to the suction of my shop vac. OD of tagon would be driven by the available clearance at the IMSB. It would certainly suck, and might work. In fact I'd give this a shot even if I could not see the lost fastener and ended up just fishing around. Would it work? Maybe.