The water pump on a 2001 Chrysler PT Cruiser is located at the
front of the engine, near the timing belt (or timing chain, depending on the engine type). It's usually fairly low down and somewhat obscured by other components. You'll likely need to look underneath the car and possibly remove some belts or other components to get a clear view.
Because of its location and the need for specialized tools to replace it (usually requiring draining coolant), accessing and working on the water pump yourself requires mechanical expertise. If you're not experienced with automotive repair, it's best to have a qualified mechanic perform this task.
