The firing order for a 1990 Buick Reatta schematic?

The firing order for a 1990 Buick Reatta, which is equipped with a 3.8-liter V6 engine, is 1-6-5-4-3-2. This means that the cylinders fire in that specific sequence for optimal engine performance. The cylinder layout follows a front bank of cylinders, with cylinder 1 at the front of the engine on the driver's side. Always refer to the vehicle's service manual for specific maintenance and repair information.