1992 "F" cars, with manual regulators only, within the following VIN breakpoints:
Chev From NL116619 to NL129679 Pont From NL212558 to NL213572
Some owners may comment about door glass that doesn't maintain a seal to the weather-strip or drops down and causes windnoise.
May be due to internal conditions in the regulator spindle and clutch mechanism.
If this condition is found, replace the regulator.
P/N 16625040 right (manual) P/N 16625041 left (manual)
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.