1994 Chevrolet Lumina

Engine Mechanical problem
1994 Chevy Lumina 6 cyl Two Wheel Drive Automatic 170000 miles

ive been struggling with a rough start in the mornings or after work. I have done plugs wire, intake gasket. Found some vac leaks and sealed them. My last resort is to pull up the entire manifold and reseal it. What needs to be removed once you take the upper plenum off? And how do I disconnect the egr tube so I can actually pull off the manifold? Will the injectors have to come out? Any advice from experience would be helpful. 1994 lumina z34 lq1 automatic 3.4 dohc
October 26, 2010.

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