Well I didnt think about that. I pulled the intake this morning and put rtv on the coolant block off there was a little coolant on it. But i didnt check that plug. The car has been sitting for about a week and there was no leak spots under it so i need to drive it then throw it on a lift and see what i can find. What if i poured some radiator stop leak in the cooling system? you think it would stop it if it is that plug on the back of the head?

 

Well after getting the car on a lift could see what was leaking coolant. And there is a plug on the side of the block right toards the back. It looks like it uses a star or hex head type driver to remove it. Of course ill have to pull the passenger header to get to it but what kinda sealer do you guys recommend to seal it up so it wont leak again?

 

they have a white thread sealant at advanced that works great I Have and that plug leak on 5.3 in suburbans and tahoes before i would take it out clean and inspect and seal it i will get you torque spec to properly torque

 

Do you rememeber the name of the sealent? Torque specs would be great. Im just glad it wasn't something worse after i just did my swap.

 

Use the liquid teflon pipe sealant.

 

Just get a new crush washer/gasket from the dealership for that coolant blockoff plug and it will be fixed.

 

Ill look into it all this weekend. Ill tear it a part. Replace it or re-seal it.

 

Just remove the plug and take it to a hardware/plumbing store, get an aluminum or copper crush washer that fits, and you're in business.

 

Yea I could find a copper or aluminum washer to fix it too.

 

They carry those seals in the HELP section of the auto parts store.

Copper or aluminum washer??? Really?

 

Im probably gonna just replace the whole plug and all that way I dont have to worry about. Just buy a new one with thread sealer and call it a day.