1. Find your engine's specifications: Look for a sticker on the engine itself or in your owner's manual. This will tell you the exact engine code (e.g., 3.4L, 3.8L, etc.).
2. Find the firing order for THAT engine: Once you know the engine code, search online (e.g., Google "1996 Camaro [engine code] firing order") for the correct firing order. The firing order specifies the sequence in which the cylinders fire.
3. Locate cylinder #3: Once you have the firing order (e.g., 1-6-5-4-3-2), count the cylinders starting from the passenger side (usually front to back) or driver's side (depending on the engine), following the order provided. Plug #3 will be in the cylinder identified as number 3 in the firing order.
Important Safety Note: Before working on your engine, disconnect the negative terminal of your battery to prevent accidental short circuits.
