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**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: 8,389	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.