The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 91 sububan ac controls cable or electric, and rear ac question

**kwmech** · 04-26-2018, 10:58 AM

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

04-26-2018, 10:58 AM	#3
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,720	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.