: hose on EGR valve 1990 Cadillac Brougham 5.0L

Douglas Holub
09-15-11, 02:53 PM
I bought this car two weeks ago with 54k original miles. The engine is running a little rough under light acceleration and I think it's a vacuum problem. I notice that there is no hose connected to the EGR valve. I can't find any loose hoses laying around unconnected. Can somebody tell me where the hose should be connected?

09-15-11, 03:15 PM

forum member Sven made this (I believe)

It's probably the best vacuum diagram I've ever seen for these 307's

Douglas Holub
09-15-11, 04:25 PM
I didn't realize until I saw this drawing that the VRV has an unconnected nipple. Whoever connected the vacuum hoses last stuck the EGR hose on the VRV. I moved the hose to the EGR and now it runs smooth and solid. Thanks a million.

09-15-11, 04:56 PM
nice! glad to hear it

09-15-11, 09:28 PM
There's supposed to be a foam filter stuck to on that extra nipple; they fall off and get lost.