hi i recently bought a bronco '86 the previous owner said that it needed a muffuller and a tail pipe. when i looked underneath i found a rust hole in the tailpipe,thats no big deal. but what i found next is confusing me. the truck seems to have 2 cat's and inbetween them is a hole. it looks like something goes there.i need to know what. please reply if you can help.

 

Greetings.

If the hole in fact is a small tube jutting out, that would be the place where the downstream air injection tube would go. Most likely, all that has been stripped off the truck.

In '86 it was no big deal to do that, as long as you have no smog inspection where you live, and the cats were hollowed out.

If the air pump, plumbing, diverter and check valves are missing, it could be expensive to put it all back...

If inspection requirements dictate all the smog gear be in place, then hit the salvage yards. Any '86 model F150 with the same engine would have the same smog gear underneath.

If you don't have such, just replace it all from the exhaust manifolds on out... do as you please...

good luck.
Mike

 

i live in new hamphire were they are strict about exhausts leaks. you are right it sound like the smog thing. what i need to know now is can it be plugged or should i just cut that section of pipe off. and replace it with a peice of pipe. please reply. oh ya thank's for the advice. ken.