Thanks for the reply Marc. I was able to determine what the problem was. I was looking for values in a select and not an input. Here is the final code that I had to use that included my additional fields that I needed as well...
function PreSaveAction() { var txtVendor = $("select[Title=Vendor] :selected").text(); var txtScope = $("select[Title=ContractScope] :selected").text(); var txtLocation = $("input[Title=ContractLocation]").val(); var txtType = $("select[Title=ContractType] :selected").text(); $("input[title=Title]").val(txtVendor + ' - ' + txtScope + ' - ' + txtLocation + ' - ' + txtType); return true; };