Where are the spark pluGs located on a 1999 Dodge Intrepid?

The spark plugs on a 1999 Dodge Intrepid are located on the top of the engine, under the plastic engine cover. To access them, you'll need to remove the cover. There are two rows of spark plugs, one on each side of the V6 engine. Because there are multiple banks of cylinders (V6), you'll have a set on each side of the engine. A diagram in a repair manual will show their exact placement relative to the engine components.