To find it:
1. Open the hood.
2. Look carefully at the front of the engine block. The cord will likely be a heavy-duty cord that plugs into an electrical outlet.
3. It might be tucked behind or near other components. You may need to move some wires or hoses to get a better view.
4. Feel around the engine block. The cord's plug will be a noticeable feature.
If you're still having trouble locating it, consult your owner's manual. It should have a diagram showing the location of the engine block heater. You can also try searching online for "2003 Chrysler Caravan engine block heater location" – images from other owners might help.