broken petcock:(
 

so i was changing coolant and i was tightening the petcock and it just snapped off and now i have a drip coming from there what should i do how can i get the broken piece out anything please help!!!!

You need a screw extractor set.

They run from $10 up, and are available at any good parts store. You drill a small hole in the part, and the extractor screws in backwards (reverse threads) - as you tighten, it pulls out the broken screw.

Go gently, especially in plastic.

http://www.cdxetextbook.com/video/im..._extractor.jpg

http://www.sears.com/shc/s/p_10153_1...6196000P?mv=rr

thank you