91 sububan ac controls cable or electric, and rear ac question
 

I've search but can't find. My (new to me ) 91 suburban is blowing floor only are the ac,heat controls still cable operated like the other square body's or are they electric like the 90s trucks? Also is the rear ac switch fixable mine won't work on high unless I hold it in. Don't seem to be available new.

Re: 91 sububan ac controls cable or electric, and rear ac question
 

Cable and Vacuum like the old body style. There is also a plastic piece on the door actuator that tends to break easily.

Re: 91 sububan ac controls cable or electric, and rear ac question
 

Check the vacuum hose up on the firewall near the distributor. Just a small plastic hose that goes through the firewall.

Re: 91 sububan ac controls cable or electric, and rear ac question
 

Thanks yall, when it quits raining I'll dig in.:smoke:

Re: 91 sububan ac controls cable or electric, and rear ac question
 

Found a rotted vac line fixed problem think my duct work is stopped up on vent. The passenger door vent blows like a hurricane and little pices of looks like hood insulation blowing out of it rats might have been in there? The other vent blow a little defost blows strong. Ths burb did sit for a while found little evidence of critters in engine bay.