i would first try an ez-out. you can get them at any hardware store or a place like home depot. in a nutshell, you drill a small hole into the broken bolt. then you use the ez-out, which is a reverse threaded part. as you tighten it in, it extracts the broken bolt.

 

if it was a clean break, remove the intake and get a smal awl, try and rotate the broken piece out....might be just that easy...

 

http://www.dimebank.com/tech/BrokenBolt.html

 

Ok and this is why you.....never mind i won't go there....

Anyway, you have a vacuum leak and your engine is running lean. Keep driving with the vacuum leak and you'll be asking for more problems. The oxygen sensors have picked up the leans ratio and your computer is compensating for the leak by adding more fuel, your gas milage will decrease and your performance level will decrease as well.

With that leak, you risk the chance of "burning" your valves and piston. Not to mention the dirt and what not that is getting sucked into your cylinder scratching your cylinder wall.

The removal is simple just time comsuming since you need to remove everything you installed to get to the broken screw/bolt. I have encounterd dozens of broken studs and only rarely have I had to drill. If the break is clean (which it probably is) get an "Awl"-- a very pointy sharp end, use that to grab the tip of the broken stud, and carefully rotate it out of the hole. Takes approx 20 minutes and no damage or drilling required.

Good luck. here is a pic...
http://cgi.ebay.com/3-Leather-Bead-A...QQcmdZViewItem

 

Yes, once your oxygen sensors picked up the lean misture, they set off the code....which turns on your check engine light

 

meant to say mixture...darn fat finger...

 

Common problem when removing upper manifold is to break the lower manifold nut off in the lower manifold. No worries. Remove all the bolts you can and usually 1 or 2 bolts that only tighten into the lower manifold do not come out. They just spin. Do not try and drill out the top of the head. Metal shavings can get into the cylinders. Get a small pry bar or claw and just pull out the bolt with the nut or just simply pull on it. Will have to remove the nut anyway later on if you want. Also the bolts that tie the upper through the lower to to block are sufficent to hold the 2 manifolds together and create an air tight seal. After removing I epoxied the nuts back into the lower and waited 3 day to harden suficiently then when putting back together just snug down. dont over tighten the bolts to the lower manifold. Its been perfect for 4 years now.
Hope this helps anyone looking for a solution.

 

No harm at all in replying to an old thread if it is relevant, and it was in this case. It helps eliminate multiple threads on the same topic which I think is useful.

Having said that, and this is just a suggestion, you might want to start out by saying something like " I know this is an old thread however it is still relevant".

 

I agree, your comment was useful the rest of the posts were not so I've deleted them all.
Time to move on now I'd say.

 

Yup
Time to move on

Thanks Norri!