I was just under the hood kicking around and noticed that I have several cracks in the firewall..........the cover over the a/c,heater blower motor is virtually done.........it appears to be a plastic that breaks off in pieces very easily.............

1) do I need to seal off the cracks.......and if so with what..........??

2)should I replace the blower motor cover piece ............??

Thanks...........

ideas anyone.......??

Its the plastic piece that sits right behind the strut tower brace right? If so, just replace it. I'm sure its cheap. It removes very easily. All that piece serves as is just cosmetic. It doesn't have much other function.

Do you mean lower near the rear headers (exhaust Manifold).

Ty