thermostat housing bolt
 

I got a 94 protege and while tightening the bolts on the housing the lower rear bolt snapped...is it threaded in the engine how do you suppose i get it out any help is appreciated

try using a drill and try to thread a smaller sized bolt into it

Drill a small hole in it, get an "easy-out" and remove it that way. That is the ideal solution. If that doesn't do it, you need to drill out the old bolt and put a helicoil in.

Be warned that if you break the easy-out, you're basically thoroughly boned because they are made of considerably harder steel than drill bits.

How did you break the bolt? If it was rusted in and you broke it on removal, I'd suggest you not tackle this problem yourself. If you just overtorqued the bolt and sheared it off, removal should be fairly easy.

what he said