This bulletin supersedes and replaces Service Bulletin T-91-5 which should be discarded. This bulletin is being revised to change the service procedure and add new part numbers.
Some 1990 Allantes equipped with power header latches may experience interference between the sun visor and the soft top header motor cover when the visor is rotated. This condition may be caused by a design interference between the visor and the cover.
To repair this condition replace both soft top header motor covers with the new redesigned covers, P/N 3526429 (RH) and P/N 3526430 (LH). Refer to Section 10-9-42 of the 1990 Allante Service Information Manual for the removal and installation procedure. Parts are currently available from GMSPO.
For warranty purposes use Labor Operation T6520 at .2 hour for both.
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.