What is the spark plug order for Buick park avenue 3800 engine?
The firing order for a Buick 3800 Series II engine (the most common in Park Avenues) is 1-6-5-4-3-2. However, it's crucial to verify this with your specific engine's year and model. The engine bay should have a sticker indicating the firing order, and your owner's manual should also provide this information. Using the wrong firing order can severely damage your engine.