'81 F-100, No defrost blow

Asked by Nov 24, 2015 at 02:00 PM about the 1981 Ford F-100

Question type: Maintenance & Repair

I only get air thru the dash board vents. No floor and more importantly, no
defrost. I know there is a defrost/floor mode. How do I manually make that stay
open until I get a new duct cabinet?

1 Answer

100

that is a simple fix actually ...that system is operated by vacuum check vacuum line under hood and look for a broken one ..should be a black line from the carb to a vacuum bottle? or straight vaccum to indise the cab usually on the passenger side underhood ...

Your Answer

Add photo

Related Questions

Search Ford F-100 Questions

Ford F-100 Experts

#1 tennisshoes
tennisshoes
Reputation 400
#2 FordNut
FordNut
Reputation 300
#3 MrBlueOval
MrBlueOval
Reputation 240
View All

Related Models For Sale

Used Ford F-150
3,389 Great Deals out of 203,566 listings starting at $1,273
Used Ford Mustang
694 Great Deals out of 38,146 listings starting at $1,750
Used Ford F-250
564 listings starting at $1,977
Used Ford Bronco
225 listings
Used Chevrolet Camaro
646 Great Deals out of 39,146 listings starting at $2,995

Used Cars For Sale