harsh20 wrote:
i too have experienced this whinning noise for a while. it did start in the cooler months and then progressively got louder. i thought it may be just be the belt making the noise. i sprayed belt dressing on it and wd 40 on all the pulleys. that didn't help so i got a sthetoscope and listened to the alternator and it nearly deafened me. i took it to the dealer and low and behold the alternator was slowly dying. they have ordered a new one for me and it will be replaced next week. this is '02 reneagade that just tripped 50K. may or may not be your problem but if the noise does not stop while the engine is running it most likely could be the brushes in the alternator burning out.
The noise stops 5 or 6 seconds after the engine starts. At this point, I'm betting that it's the starter, so I ordered a new one and will replace it this weekend.
I'll let you all know if that works.
Thanks everyone for your input.
Ed