I have a 1999 TJ Wrangler Sahara 4.0 and the cruise control will not engage when I try to turn it on. No warning just quit working between drives. It is apparently a vacuum driven system and all hoses look good. Could be the servo, any ideas on how to test/troubleshoot? Common causes? I did sleep in a Holiday Inn Express last night, but then again.....I am from South Georgia.... Thanks
