I know I have a leak because I had to add Freon over the last summer. Well it's been about 8 months or so and it's not blowing as cold again. I've also noticed a noise now coming from the compressor, A wine like a bad idler pulley. It's not that loud though. I'm assuming it's because of low Freon so I hope it goes away when I recharge it.
Does the system come with dye in it from the factory or do I have to add dye? Are there any common leak points to check for on the fusion or in general?
Also does the noise indicate low Freon or does it mean the clutch is bad or worse?