need some 3400 help [Archive] - Forum


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06-07-2009, 05:55 PM
these engines are new to me so imma ask for some help from some of you that know this engine better then me

i bought this car less then a month ago and been trying to figure out why the previous owner pluged off what appears to be a vacume nipple on the UIM.

does anyone know what should of been connected to this?

06-07-2009, 05:56 PM
That's normal. It's suppose to be their.

06-07-2009, 06:20 PM
That's normal. It's suppose to be their.

thanks wanted to make sure it wasnt gonna be a problem down the road

06-07-2009, 08:22 PM
Yeah, it's a test port to hook up a gauge to check the manifold vacuum. Maybe it can be used for other things too.