1. Cruise control on jeeps are vaccuum operated. You probably have a vaccuum line somewhere that has cracked. Look under the hood for that first.
2. The default mode on any car for heat or ac is defrost. So if that is all you are getting the two problems may be related since the mode doors behind the dash are vaccuum operated as well. Check for vaccuum leaks. Cheap fix
Tuesday, September 28th, 2010 AT 8:26 PM