Last week I changed my valve cover gaskets on my 98.5 3500 4x4 with an 8.0 and when I was putting everything back together I can not find the port that this vacuum hose plugs into. I don't remember unplugging it but I'm betting I did somehow. It originates at the pump on passenger fender well (pictured) it's the top line with the service port in it and it runs around behind the intake and comes out by the air filter housing. I have looked everywhere and for the life of me don't see a port for it. Any help would be appreciated. Thanks in advance. Dale

 

The plugs into the throttle body

 

Yeah, but WHERE????? Gotta pic of the location? V-10 throttle body layin' about?

I can't see it at all on my 98, (early production) and I can't find a good image online either.

 

No never owned a V10 wish I did lol. I'm going off of the V8 it plus into the throttle body to burn the exhaust fund for emissions

 

Yeah, I found the vacuum diagram that shows it goes up the throttle body, however, I cannot find a good pic of just WHERE on the throttle body it goes. Mine is stuffed back under the cowl a ways, and is darn near impossible to see.

Edit: Now that I think about it, I pulled my throttle body to replace the throttle position sensor, and I don't recall seeing ANY vacuum lines connected to it........

 

if you don't have the leak detection pump and purge valve on the partner side fender it won't connect there at least on the V8s so 98.5 would have it?

 

I'm assuming it could attach to the intake as it would still such it into the combustion chamber

 

That's my guess. As I had my throttle body on the bench, and I sure don't remember any vacuum lines at all. Just a selection of electrical connectors.

 

That's probably where then