2006 town and country...after releasing the ignition switch,
engine starts fine, but a high-pitched whine contiues on..
whine then decelerates...especially noticeable on cold
start in cold weather...lately, a whine of much less
volume continues on while driving / accelerates and
decelerates as rpms change...also, whine occurs when
reving engine in neutral...dealer says not a problem?
any ideas, am running out of warranty...thanks, jim d.

 

I have seen the altnator bearing that little back thing on the end cause whine issues u get a new altnator. A compressor will do it see if it changes with the ac on or not. humm pullys but not likely. A Power steering pump. see if u turn the wheel it makes noise as well. The rack leaks on them all the time.

 

I had whine or whistling noise in my '02. It was mainly noticeable driving at 35-50 mph and went up and down with rpm. The dealer replaced power steering pump and pulleys to no avail. Later found out it was a stuck valve in the coolant system. The valve was stuck slightly open and the pressure of the coolant moving through that small opening was producing the whine. Ifyours will make the noise even in neutral, you may be able to get under the hood and narrow down where it's coming from.

 

You have to replace the 2 chipmonks in the power converter cage every 2 years, their feet wear off.

 

I have had this issue for a while on my 02. Brought it to the dealer numerus tie, no avail. I have had the issue for the past 4 years now,and gave up. I am planning to bring it for a tune up soon,and im gonna mention it to them .