Spectrum L4-91.5 1.5L (1985)
Windshield: All Technical Service Bulletins
Windshield Defrost/Defogging - Control Usage
Number:
86-241
Section:
1A
Date:
June, 1987
Subject:
WINDSHIELD DEFROST/DEFOGGING
Model and Year: 1985-86 SPECTRUM
TO:
ALL CHEVROLET DEALERS
To improve the time to clear heavy condensation or frost from the inner or outer surfaces of the windshield during periods of high humidity/low
temperature ambient conditions, the owner should be aware of the owner's manual operating instructions regarding the use of the ventilation, heater and
air conditioning system. It is particularly important that the air-source select lever usage is fully explained, since improper use of this lever can cause a
complaint condition.
In the event of the complaint condition existing with the correct usage of the heater controls, the right and left hand defrost ducts (nozzles) should be
replaced using the 1987 components following the Shop Manual procedures:
P/N 94436981
Nozzle Defrost R.H.
P/N 94436982
Nozzle Defrost L.H.
These parts incorporate changes to the deflector locations and angles which result in more effective distribution of the heated air over the windshield.
Labor Operation Number:
T1213
Labor Time:
1.9 Hours