What is the cylinder numbering on a 94 Buick skylark with 3100 series v6 engine?
The 3100 V6 in a 1994 Buick Skylark uses a front-to-rear, passenger-side-to-driver-side firing order. Therefore, the cylinder numbering is as follows when viewing the engine from the front:
1-3-5 on the passenger side, 2-4-6 on the driver's side.