Heater Hose - Buzzing Noise
Number: 84-51Section: 1A (Ia)
Date: Jan., 1984
Subject: POSITIONING OF HEATER INLET
HOSE CLAMP SCREW ON L4 ENGINES WITH AIR CONDITIONING
Model and Year: 1984 CELEBRITY AND CITATION
TO: ALL CHEVROLET DEALERS
Some early production 1984 Celebrity and Citations may have the heater inlet hose clamp positioned so that the clamp screw is oriented towards the front of the dash. On heavy acceleration this screw can contact the blower air inlet assembly, causing a "buzz" or rattle sound in the passenger compartment.
POSITIONING OF HEATER INLET HOSE CLAMP SCREW ON L4 ENGINES WITH AIR CONDITIONING:
If this occurs, orient the screw head on the engine side as shown.