Originally Posted by naMyegooBehT
I need the torque sequence for the 3800 series II engine on the upper intake manifold. A.K.A Plenum. The plastic one.. I've looked everywhere for the sequence and I cannot find it. If anyone knows please help me.
Our torque specs are listed in Techinfo, at the top of the page.
89inch/lbs, but I strongly suggest you 'stage-torque' it. Set the wrench to 50 in/lbs, and do a zigzag up and back (front, rear, front rear, skipping every other one, and come back in an opposite zigzag).
Then repeat the sequence at 89 in/lbs.