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Yeah the tube is cast into the plenum. You can se where the egr pumps into the plenum just behind the intake. My PCV vavle had been clogged for years(?) PO never maintained anything. Egr was toast, tube almost solid, caused my throttle body flap stick.


Wow, I always thought the EGR just recycled into the plenum chamber itself. Given the condition of the inside of the plenum last time I looked at it, I should probably clean the hell out of it, lol. However, if that tube is clogged would tapping on the valve smooth out my idle? Seems that if it was gunked up it wouldn't matter either way since I'd be getting little or no flow. Hmm, regardless I'll remove it and clean the hell out of it but I think I need to go through and test all my emissions components, I wonder if something isn't hooked up right or not working right and holding that valve slightly open...