INSUFFICIENT HEAT ON DRIVERS SIDE (NEW PART NUMBER)

MODELS AFFECTED: 1985-1988 DE VILLES AND FLEETWOODS

Some 1985-1988 DeVilles and Fleetwoods built prior to VIN 285589 may experience insufficient heat on driver's side. This condition may be a result of an imbalanced delivery of hot air through the floor heater distribution duct. To repair this condition follow the procedure below to remove the floor heater distribution duct and replace it with a new heater duct, P/N 25533710.

1. Remove a wing nut and four screws to lower close out panel.

2. Pull down close out panel.

3. Remove two screws holding ALDL connector and heater distribution duct in place.

4. Remove heater duct.

5. Replace with heater duct, P/N 25533710.

6. Reverse steps 1-4.

For warranty purposes use Labor Operation D1517 for .3 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.