Paul22RE

I am trying to remove the intake manifold off of the head as a whole unit but that last hidden bolt underneath the t-stat housing seems impossible to get off without splitting manifold in two. A fuel pipe is right in the way of any tool I tried, and can't even get to the bolt to move that out of the way. Maybe a special swivel allen socket tool? Do I have to split the manifold in two to gt to this bolt? Thanks!

outdoorjunky

it's notorious for the head of that bolt stripping out as well so be ready for that. I took my upper plenum and fuel rail off and then access to the hidden bolt is no longer hidden and I got on it with a3/8 drive with a 6mm Allen socket. since it's so easy to strip it I would do it again that way if I had to but it's probably best to find the same size and thread count bolt in hex and install that instead, I should have done than when I put mine back on. If it does strip some people have had success with hammering the back end of a screw holder for an impact driver the (kind that would go into a battery operated screw gun/Impact driver) into it then grabbing on to it with a 1/4" wrench or jam a security bit into the end of that and connect it to a breaker bar. . other people have reported that they cut a notch in the end and got on it with a flat head but I'm not sure how effective that would be considering how stuck that bolt can get.