The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 88" Suburban Defroster does not work...? Advice

*bisquik65* · 12-26-2004, 08:35 PM

You need to check for vacume coming from the heater control valve to the heat/defroster door under the dash. I can get you pics of it tommorow eav. I am parting a 89 burb and the dash is all apart so it will be easy to see. I hope this will help you again,Erick

12-26-2004, 08:35 PM	#2
bisquik65 Account Suspended Join Date: Apr 2004 Location: N.C. high country Posts: 6,107	You need to check for vacume coming from the heater control valve to the heat/defroster door under the dash. I can get you pics of it tommorow eav. I am parting a 89 burb and the dash is all apart so it will be easy to see. I hope this will help you again,Erick