Originally Posted by eaf
Why do I need two TB gaskets? Are they installed together as one?
About taking off the manifold... The TSB doesn't say anything about dropping fuel pressure or dealing with fuel rails. Yet I saw some posts here recommending to even buy injector o-rings in advance. So, what's the real deal here? Do just like the TSB says (detach TB, then all cables and hoses from the manifold, unscrew and clean manifold and put everything back together), or are there catches and gotchas like fuel pressure release?
There are two different TB gaskets, one TB side and one IM side. Your dealer will know.
The intake manifold and fuel rails are completely seperate. The only o-rings you might want to buy are the spark plug o-rings if you take off the valve covers and want to check their condition. I did and all of mine were in good shape. There are exactly zero surprises in this job. Take the TB off, pull it back far enough so you can get the IM off, clean, then replace. The only tricky part is pulling the TB around because it's attached to the throttle and cruise cables.