Pontiac Sunbird 1992–1993 — technical service bulletin

Official summary

General motors has determined that some 1992-93 pontiac sunbird model vehicles equipped with a 2.0l engine may have been assembled with the incorrect coolant pump. Coolant may leak past the internal coolant pump seal and into the pump bearings. This may cause premature bearing failure resulting in a coolant pumping noise. If not repaired, this condition may result in a loose timing belt tensioner which could cause the engine to fail. To prevent this condition from occurring, dealers will inspect the vehicle's coolant pump and replace the pump if necessary. *tw

Vehicles covered

• 1992 Pontiac Sunbird
• 1993 Pontiac Sunbird