This bulletin supersedes Dealer Technical Bulletin 88-T-23 which may be discarded. This bulletin has been revised to include part numbers for the fan bracket screws and isolators.
Some 1986 through 1988 Tornados may experience a condition of insufficient air conditioning cooling at idle or while driving at low speeds in high ambient temperatures and humidity. This condition may be caused by reduced air flow across the condenser. To repair this condition install a pusher fan using the following parts and procedure.
3 Fan Bracket Screws 11504612 1 Fan Bracket Nut 11509005 1 Cooling Fan 22054216 1 Fan M otor 22054217 (Includes 1 nut) 1 Fan Bracket 22054218 3 Fan Bracket Screws 22034870 3 Fan Bracket Isolators 22523609 1 Cooling Fan Relay 25520198 1 Refrigerant Charge Label 1646731
--------- 1. Assemble cooling fan motor, bracket, blade and isolators on bench.
2. Remove plastic fan cover and disconnect pusher fan electrical connector from holder.
3. Remove wiring harness from retainer and then remove the retainer and install it on upper leg of fan bracket.
4. Remove and discard screw from the lower left position and install cooling fan bracket nut (Part No. 11509005) in the lower right position.
5. Install cooling fan assembly on car using 3 screws (Part No. 11504612).
6. Connect electrical connector to fan motor and position wiring harness in retainer.
7. Install cooling fan relay in position "D" of underhood relay center.
8. Clean off current refrigerant charge label and install new label (Part. No. 1646731) over the old label. The new label reflects the new recommended refrigerant charge to be used for service.
Labor Operation Number: T6264 Labor Time: .5 hr. Trouble Code: 92
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.