Am I missing a bolt here? (exhaust manifold)

[SoCalTJ]

What is supposed to go here ? A bolt, a sensor?? Jeep was running fine now it sounds like a tractor. I think the exhaust is coming out of this hole. This is the down section of the exhaust manifold where it connects to the lower exhaust with cats O2 sensors etc.

This is a 2000 4cyl

 

[SSTJ]

Based on some of @TJ4Jim 's comments over on this thread, I think that's an outlet that was used for the YJ, and that is supposed to be plugged on the TJ.

 

[SoCalTJ]

Based on some of @TJ4Jim 's comments over on this thread, I think that's an outlet that was used for the YJ, and that is supposed to be plugged on the TJ.

Thanks. Now I just need to figure out the size of the bolt/plug.

 

[SSTJ]

Thanks. Now I just need to figure out the size of the bolt/plug.

I'm no help there, but good luck. If you discover any other problems with the manifold, you can see what I learned when I replaced mine, at that link above. Also on my build thread in the signature line.

 

[SoCalTJ]

I'm no help there, but good luck. If you discover any other problems with the manifold, you can see what I learned when I replaced mine, at that link above. Also on my build thread in the signature line.

Wish I would have seen that a few weeks ago. I just replaced the manifold. All was good until the plug fell out!