Blower Motor - Whistle Noise
90oldsmobile10SUBJECT WHISTLE NOISE FROM BLOWER MODIFY BLOWER
CASE
MODELS/YEARS 1990 CUTLASS CALAIS
NUMBER: 90-T-142
CORP.REF.NO: 071203
DATE: JULY 1990
SECTION: 1B
Some 1990 Cutlass Calais models built between the VIN breakpoints listed below may exhibit a "whistle" noise when the blower is operated under certain conditions. The whistle noise may be experienced under the following operating conditions:
VEHICLES BREAKPOINTS
With AC Without AC
Plant Nameplate From VIN # to VIN # From VIN # to VIN #
Lansing Oldsmobile LM748734 - LM759966 LM749377 - LM759966
In order to reduce the whistle noise the following procedure should be used.
Figure 1:
1. Remove blower motor and fan assembly from vehicle
2. Locate tab (Figure 1) inside blower motor case
3. Bend tab downward about 20 degrees as shown in Figure 1
4. Install previously removed motor and fan assembly
WARRANTY INFORMATION:
Wfth A/C Wfthout A/C
Labor Operation Number: D1322 D1320
Labor Time: 0.4 hour 0.4 hour
Trouble Code: 92 92