whining

Hey guys, hope everyone is enjoying their weekend. Well, I am working on my fiance's Jeep Liberty (2002 with 3.7L engine) because it has a loud whining noise at a cold start. It only lasts for a few seconds and then goes away. It also gets worse as it gets colder outside (below 50F or so). Now...

2003 grand cherokee v8 Ok, maybe I have just noticed this. Something is making this loud whining noise. Sounds like a jet engine reving up kind of, except it doesn't sound like the engine. It speeds up when I do. Is the transmission going?Only 60k miles on it. Any ideas?