IMPROPER AIR DELIVERY FROM ELECTRONIC CLIMATE CONTROL

MODELS AFFECTED: 1981-1987 RWD DE VILLE, BROUGHAM AND LIMOUSINE 1980-1987 ELDORADO AND SEVILLE 1985-1987 FWD DE VILLE, FLEETWOOD AND LIMOUSINE 1987 ALLANTE

When diagnosing an air delivery problem on a car equipped with electronic climate control, all tests must be performed with the programmer mounted in the proper position. Failure to do this may result in improper diagnosis and unnecessary programmer replacement. The programmer must remain in the vertical position so the check balls in the solenoids will properly seat.

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.