i would check to see if any of the lines that run to the vacuum motors are broken... i had one that broke off on the floor vent, so it wasn't shutting one of the flaps. I know sometimes if that happens it defaults to the defrost setting...

 

^^^^Will do. All of the vacuum ports on the actuators have hoses properly seated in them, but maybe back up under the dash somewhere they are broken. I'll see what I can see.....

 

As mentioned, defrost is a default position. If you have no vacuum it switches to defrost. Check your source from under the hood to where it goes into the firewall. It should also T off to the vacuum resivour (the ball) under the hood.

 

Hmm, well, problems solved...on it's own. SInce all I really needed was defrost, I dicided to go ahead, put everything back together and worry about fixing it when I had the time. Well, after I got everything buttoned back up, I turned on the AC and everything works. All the vents, heat, cold, etc. Lol, I guess prayer does work........

 

i kinda have the same issue, the defrost ents and the floor vent work, but thatr dash ents don't

 

another thing i noticed from my own stupidity, is that when you're checking if all the vents work, start the truck to get the vacuum running since the vents are vacuum operated... i ended up taking the whole interior apart thinking my vents were broken, not realizing that i just needed to start the damn truck

 

another thing i noticed from my own stupidity, is that when you're checking if all the vents work, start the truck to get the vacuum running since the vents are vacuum operated... i ended up taking the whole interior apart thinking my vents were broken, not realizing that i just needed to start the damn truck

I can not help but to :rotf: :rotf: :rotf:

 

lol

 

haha oh ya it was real fun... and real hot out too. Makes for fun interior work :rant:

 

Hmm, I didn't think of that either, but all mine work if the truck is running or not.