A/C - Blower Deep Roar After Start Up In Cold Weather
Bulletin 85--8-2Date May '84
Ref. No. 84-210-8
SUBJECT: HEATER BLOWER DEEP ROAR AFTER START UP IN COLD WEATHER
MODELS AFFECTED: 1985 ELECTRA WITH C68, ELECTRONIC TOUCH CLIMATE CONTROL
ILLUSTRATION 1:
A condition has been noted an some early 1985 Electras with C68 where a deep roar can be heard several minutes after start up in cold weather. If a car with this condition is encountered, it can be improved by applying a bead of Dow Corning 111 Compound (or equivalent heavy consistency silicone lubricant) around the temperature door opening. See illustration 1 for area of application. Access to the temperature door opening can be gained by removing the heater outlet. The bead of silicone must be applied to the HVAC Module (Not to the temperature door itself) but must contact the vinyl seal around the entire perimeter of the door when the door is closed.
Dow Coming 111 Compound is available in a 5.3 oz. tube. For information on availability in your area contact Dow Corning on the toll free phone number 800-447-4700.
WARRANTY INFORMATION
Labor Operation Number T5068
Failure Code 92
Labor Hours .4
Parts Allowance 2.06
"We believe this source and their equipment to be reliable. There may be additional manufacturers of such equipment. General Motors does not endorse, indicate any preference for or assume any responsibility for the products or equipment from these firms or for any such items whichmay be available from other sources."