For 1990-2009 cars

# HIGH NOISE LEVEL FROM COOLING FAN (REVERSE FANS)

#### SUBJECT: HIGH NOISE LEVEL FROM COOLING FAN (REVERSE FANS)

#### MODELS AFFECTED: 1993 FLEETWOODS AND FLEETWOOD BROUGHAMS (RWD)

On 1993 Fleetwoods and Fleetwood Broughams with the V03 option (Extra Capacity Cooling), the cooling fan may be noisy.

The primary cooling fan is a 240 watt unit. This unit may have an unacceptable level of noise. A production change was made to use the 150 watt fan as the primary, and the 240 watt fan as the secondary, in September of 1992 with VIN PR700899.

1. To ensure that the fan noise is not confused with A/C compressor moan, disconnect the primary fan and run the vehicle with the A/C on. If the noise goes away, proceed with the correction. If it does not, investigate for causes of compressor moan.

2. Disconnect negative battery cable.

3. Remove the two cooling fans and reinstall in reverse position following the instructions of pages 6B-11 and 12 of the 1993 Fleetwood Preliminary Service Information Manual. This will put the 150 watt fan on the left-hand side as the primary fan, and the 240 watt fan on the right-hand side as the secondary fan.

4. Replace the 30 amp Maxi-fuse #7 ("SCNDRY CLG FAN") with a 50 amp Maxi-fuse. This fuse is located in the underhood electrical center. Refer to page 8A-201-6, Figure 13. Page 8A-11-3 shows a close - up of the electrical center.

5. Replace the electrical center cover with P/N 10233852 which has a corrected fuse chart.

6. Reconnect negative battery cable.

Parts are expected to be available on January 25, 1993. In case of limited inventory, parts will be placed on 400 control to waive VIP surcharges. Only verifiable emergency VIP orders will be accepted. SPO will make every effort to obtain parts. However, the part will be shipped premium transportation at dealer's expense, and all other order types will be placed on back order until the 400 control is removed.

For warranty purposes use Labor Operation T6698 at .4 hour.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.