Replaced Blower motor

[bmulvenna@hotmail.com]

2004 Dynasty. After replacing the dash blower motor and squirrel cage, I discovered a lot of open space under the dashboard. Any reason not to fill this void with fiberglass insulation to reduce air leaks from the front end cap? Might also reduce some road noise.

Thanks in advance for comments. 

[klcdenver]

Use the spray foam to fill those cracks. The closed cell type is best. It will make it more air tight as opposed to using fiberglass insulation.

[bmulvenna@hotmail.com]

Thanks, but these are not small openings. They are gaps of 4 to 12 itches under the dashboard.

[Hypoxia]

33 minutes ago, bmulvenna@hotmail.com said:

Thanks, but these are not small openings. They are gaps of 4 to 12 itches under the dashboard.

That large gap is to the front end cap??  I would prefer tape, fiberglass, foam or any filler other than spray foam.  I cannot imagine the PITA of working in that area after it was spray foamed.

[Guest Ray Davis]

1 hour ago, bmulvenna@hotmail.com said:

Thanks, but these are not small openings. They are gaps of 4 to 12 itches under the dashboard.

Are you talking about openings/gaps to the outside where cold air can enter?         

I found looking at the firewall above the generator a wood panel/shelf that serves as the bottom floor of the dash.  It had a separation all the way across of about 1/2" in the center then narrowed at each end.  This panel was supposed to be screwed up to something  but it wasn't,  I was hesitant to use screws not knowing what I might hit so I filled the gap with spray foam.     Foam seems to have worked ok so far.                Could this be the sort of gaps you saw?

[bmulvenna@hotmail.com]

3 hours ago, Ray Davis said:

Are you talking about openings/gaps to the outside where cold air can enter?         

I found looking at the firewall above the generator a wood panel/shelf that serves as the bottom floor of the dash.  It had a separation all the way across of about 1/2" in the center then narrowed at each end.  This panel was supposed to be screwed up to something  but it wasn't,  I was hesitant to use screws not knowing what I might hit so I filled the gap with spray foam.     Foam seems to have worked ok so far.                Could this be the sort of gaps no,

 

No but that is also there and I gorilla glued it with weights to hold down while the glue dries. 

Perhaps I used the wrong words(openings and gaps)

What I am referring to is the large void between the bottom of the dash and the top of the blower motor and on the interior side of the defrost vents. Picture attached.

 

[RekaAnn$]

Try pool noodles to fill in the void‼️

Edited November 11, 2021 by RekaAnn$

[bmulvenna@hotmail.com]

It's all fixed.