I was checking the level of all the fluids when I came across something that I am not familiar with? Maybe someone can help?
I have a 2003 Camry SE V6. Looking into the engine compartment from the front of the car, there is a rectangular piece of metal with connections at both ends. There is a gray plastic cap with an 'H' on one end, and what appears to be a small clear window on the other end. I looked through the window and it appears empty inside. This rectangular chunk of metal is only about 2 inches in length, and is located at the front, just to the right of the window washer reservoir.
What is it? And should it appear to be empty?