New guy, first post

My new to me 93 F150 2WD 5L has a problem.
When in defrost mode, plenty of air center to the driver side
Very little defrost air volume, center to the pass side.
When I switch to vent mode, works as it should on both sides

Thanks for any suggestions

 

anyone??

 

The ducting may off came off for the passenger side..got to get up under the dash and take a look.

 

I checked
The ducting is molded plastic

 

humm...cant remember do you have a manual level to divert or a air controlled ****

 

Looks like everything is vacc. operated except the temp level adjust which is cable operated

Checked best I could to make sure all the vacc control lines are on

When fan is at high, small amount of air is felt at the Pass side defrost port

Tks for taking a look here

 

gotta be a diverter in the housing...something stupid like that...sorry never had to get in to mine when I had a 94 and 96. maybe somebody that has been in there will see this post and help you out...good luck

 

OK
tks for looking

 

anyone have any ideas?

 

Check for blockage, I've had leaves come out of my vents before. Try taking a shop vac and blow out into the vents. Also do you feel air coming out of the floor vents too?