Hey so i was putting my D16y8 intake manifold back onto my civic, i replaced the gasket, and started screwing the thing in. The nuts kept going forever and they were still lose. Felt like they didnt tighten a bit. And now i can't unscrew the nut either it just goes on forever. It happened to 4 of them. Now i have a big vacuum leak and my idle isnt stable it keeps jumping up and down lol.

Anyone know how to replace the intake manifold studs? I searched for a DIY and couldnt find one.