Thread: Hole in engine near transmission with fiberglass coming out?

I don't know why I never noticed this before, but last night I noticed that my 08 GP base (v6) has a hole about 3/4" in diameter not far to the left of the transmission housing. it appears to be in the engine block and to the right of the exhaust manifold when you are standing infront of the engine bay.

What stood out to me as odd is there is a white fibrous material coming out of it that looks like white fiberglass, I touched it and it feels soft.

What is this? did they pack the engine somehow with fiberglass or something else near this area? Why have I never noticed this before when I cleaned the engine bay in the past? I don't remember fiberglass like material sticking out before

I know that hole. Maybe the later models have insulation in the area behind the hole to reduce NHV.

sounds like insulation on the firewall to me

this isn't the firewall... this is the cast engine block that has this hole in it on the front side near the transmission

it's pouring rain like wild here so I'm just goanna take a net pic and show the location... circled in red is a machined hole... on mine there is a white fiberglass pack pulling out of it... it's part of the engine block, not easy to tell from this picture but it's part of the casting on my engine

Is your flywheel cover installed? If not you could have picked up something off the road and it got chewed up in the bell housing....????

I had a t-stat housing similar to that on my old 94 Grand Am, 4 cyl 5 speed. you opened the radiator cap on the housing, pulled out the t-stat, installed the new one and put the cap back on.