Gas leak in engine
 

I have a 2000 Chevy Blazer, 4.3L. It have a gas leak coming from the top of the engine. the leak is at the Fuel pressure regulator I have changed the "o" rings several times that doesn't work. I think it has a crack in the plastic part the lines go in to. How to fix this and what is the plastic piece called and is it sold separately?

*Moved to a new thread* - Please do not post a different question in someone else's thread. It is impolite and often pulls attention from the initial problem at hand. If a thread doesn't match up with your intended topic and searching has not turned up other threads on your topic, please create a new thread.

If your leak is caused by a crack in the injector housing, you will need to replace it. About the only source that I could find in a quick search would be a dealership. It is far more cost effective to replace the entire spider though. The upgraded MFI spider "kills 2 birds with one stone" as it would fix your leak and do away with the very often problematic poppet nozzles as found in the factory SCFI spider.