What is the easiest way to remove a character from a string with c#?

I am using the following to replace characters, and it works great unless I want to actually remove it.

string strValue = "$3,000.00";

strValue = strValue.Replace('$', ' '); // This works when i replace it with a space.

strValue = strValue.Replace('$', '');  / Doesn't work when trying to replace it with nothing.

.Remove works to replace a character at a specific index, but I don't see a way to use it to remove a specific character.