Increasing Air Flow - Bronco
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Increasing Air Flow - Bronco
I have a black (wasn't I dumb) 1987 Big Bronco and the air conditioning doesn't keep up with the desert heat. It blows cold, I had it checked and a bunch of stuff repaired, but it just won't keep up with 114F outside. I see two problems, there just isn't enough airflow and the fiberglass top transmits heat inside at a huge rate.
I plan on painting it in the future, but the cost is out of my range right now, black to white repainting is expensive. I think insulating the fiberglass top will help a lot, but I haven't figured out how to make it look good yet.
How about airflow? This era Bronco is notorious for not blowing hard enough so maybe there's a fix that can be done there. I've checked my airflow with others and it seems the same, but it just doesn't push the air into the back seat worth a darn.
Yes, I opened up the vents and cleaned out the leaves and such that had accumulated around the evaporator. I hooked up a leaf blower and blew out the vents directly to be sure. The max A/C door works fine (had to fix that too) and it recirculates fine. There just isn't enough cabin air.
Is there a high power blower motor that can be installed?
I plan on painting it in the future, but the cost is out of my range right now, black to white repainting is expensive. I think insulating the fiberglass top will help a lot, but I haven't figured out how to make it look good yet.
How about airflow? This era Bronco is notorious for not blowing hard enough so maybe there's a fix that can be done there. I've checked my airflow with others and it seems the same, but it just doesn't push the air into the back seat worth a darn.
Yes, I opened up the vents and cleaned out the leaves and such that had accumulated around the evaporator. I hooked up a leaf blower and blew out the vents directly to be sure. The max A/C door works fine (had to fix that too) and it recirculates fine. There just isn't enough cabin air.
Is there a high power blower motor that can be installed?
Post Fiend
Joined: Feb 2000
Posts: 11,496
Likes: 6
From: Kansas
I think you nailed the issue when you mentioned the 114 heat and a fiberglass roof. It's going to be difficult to see much of an improvment in such adverse conditions. The insulation on the roof would make a noticable difference. You could try some cheap home insulation with reflective foil and see if helps. It may look bad but you can do it cheaply and try it out.
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