To find them, you'll generally need to:
1. Consult your owner's manual: This is the best source for exact location and access information specific to your engine.
2. Look for the ignition coils: The spark plugs are typically located directly under the ignition coils. The coils are usually black plastic components with wiring connected to them. They sit on top of the engine and are relatively easy to spot.
3. Prepare for access: You'll likely need to remove some plastic covers or possibly parts of the intake system for optimal access.
Because of the variations in engine type and the potential for minor differences even within the same engine year, visually inspecting your engine and referring to your owner's manual will be the most accurate method.