Okay, I have looked around about every Chevy forum, no luck, so I am posting for some advice:

1. My heater hose connector is dripping and leaking Dex-Cool on the garage floor.
2. It is the black plastic connector, not the white one next to it.

3. Is there an easy way to disconnect the leaking one? I have no room for my big hands and the oil and transmission dip stick tubes are in the way.

4. The part on different part sites show a 111 vs 113 mm connector. Which one is which?

Thanks

 

I finally disconnected it using a 11" bent nose plier and some elbow grease.

I replaced with the Doorman 111 mm piece. Hooked it up and ran it around town, so far so good.

 

Thanks for reporting back w/ the solution. Glad you got it fixed.