1993 Buick Regal Service and Repair Manual

This factory service and repair manual for the 1993 Buick Regal takes in three trims, Custom, Gran Sport and Limited, on two bodies, the four-door sedan and the two-door coupe. Both engines are overhead-valve gasoline V6s without forced induction, one at 3.1L and one at 3.8L. The manual sets out procedures and specifications for the fuel, ignition and cooling systems, then for the transmission, brakes, suspension, steering and body, with torque values and wiring diagrams throughout the electrical system.

Engines covered

• 3.1L V6 (189 cu in) — OHV, naturally aspirated, gasoline
• 3.8L V6 (231 cu in) — OHV, naturally aspirated, gasoline

Body styles covered

• 4-door sedan
• 2-door coupe

Trims covered

• Custom
• Gran Sport
• Limited

Known issues on the 1993 Regal. NHTSA records 2 recalls for the 1993 Regal. On certain cars the manual front seat recliners on both sides could fail to latch under some conditions, so a seatback might fall back without warning and upset the driver's control; dealers installed compliant recliner mechanisms, and that recall covered 5,574 vehicles. Certain cars also received clear front side marker bulbs rather than amber ones. Owners filed 85 complaints, with 40 on hydraulic service brakes and 8 on the electrical system and 7 apiece on seat belts and vehicle speed control. 7 complaints reported a crash, 6 an injury, 3 a fire and 1 a death. The brakes, body and electrical system are covered with procedures, specifications and wiring diagrams.