While working on the head gasket and other gaskets changes at the same time I broke the quick disconnect fitting below the temperature sensor. It's almost directly above the exhaust crossover pipe. It's the only thing that was leaking after doing the top engine rebuild. I have a 92 v6 engine with ac if that helps. The fitting connects to the heater pipe at the other end. I haven't seen the part in either my Haynes manual or Advance auto parts or Autozone web sites. Thanks

They are available at parts store you may have to go there,dealer has them but you gonna pay more. heres a googloe link->>http://www.google.com/search?q=gm+heater+hose+connector&sourceid=ie7&rls=com.microsoft:en-us:IE-SearchBox&ie=&oe=

Thanks for the reply. I went to Advance Auto and got another one and installed it yesterday but I didn't have time to check if it leaks bacause I had to go to work. Today I went out and the new one leaks also. I have always had trouble with with these type of fittings. I am going to pull it back off again and get a different connector preferably a screw in kind or one from some other vehicle that I can use a clamp on. Thanks again.

that is the heater hose quick connector if you already changed it ehn something else may be wrong with the hose.the GM part # 24503681 is available from Dorman which you can buy at any auto parts store part #800-401
it's item 79 in the picture
http://i469.photobucket.com/albums/rr59/intimadatorsquizz/junk/untitled1.gif

Found a regular heater hose connector / with the heater pipe attached to it off of a 89-90 beretta. It is the screw on type and installed it today. It doesn't leak. Like I said before I have always had trouble getting the quick connects to seal. I don't know why they had to change something that works. I think that the pipe is smaller than what they give me to replace the connector or else the o-ring is a shade to small in the connector. Any how thanks for the name of the part.