I just ran in to the same problem with my 99 windstar, what i did was i used a deep scocket on the striped bolt, after removing all of the outher bolts lightly pryed up on the oppicet end of the upper plentium and it allowed enough pressure to hold the spinning gromet to break loose,.the deep scocket also helped for levrage,hope it works for you as well as it did for me.
It should be fine, this is a very simple operation. No worries. Be sure to review the "Related Questions" below for extensive information about the Windstar intake manifold -including links to plenty of instructions on removing the upper intake manifold.
The intake manifold is made up of 2 parts, not surprisingly the Upper Intake Manifold (UIM) and Lower Intake Manifold (LIM).The UIM is quite easy to access, with only a couple of components to disconnect in order to remove it. This is also where the bulk of the 'common' work takes place - cleaning egr ports, most of the induction system cleaning, and a very critical repair for the Windstar: failed isolator bolts.The "Related Questions" below cover the UIM in great detail - with links to in-depth procedures on removal, cleaning & maintenance.Not a comprehensive response, but enough to get the conversation started on Windstar 3.8 intake manifolds...The "Related Question" below has lots of information and links to detailed procedures on intake manifold repairs.
remove intake manifold.
There is 2 of them. and they are under the intake manifold. You will have to remove the intake manifold to get to them.
Remove the intake manifold retaining bolts from your 1993 Mercedes-Benz manifold. Remove the old manifold gasket. Clean the surface and put the new gasket on.
Remove the intake manifold, exhaust manifold, and then remove the head.
Basically you remove the throttle body, fuel rail, and anything else that is plugging into it, then unbolt it. You need to get a shop manual however, because there is a specific bolt pattern you need to use to avoid damage.
Remove the intake manifold retaining bolts from your 1996 Chevy Astro Van. Remove the manifold gasket and clean the surface. Reverse the process to install the new intake manifold gasket.
under the intake manifold. you have to remove all intake hose and intake manifold itself to get to the starter.
To remove the intake manifold on a 2004 Mitsubishi endeavor, you should take it to a mechanic. An authorized dealer will also fix it for you.
Under the intake manifold, u need to completely remove your intake manifold to Access it..
They are underneith the intake manifold. You can not see are get to them until you REMOVE the INTAKE manifold.