Today, on the way to and from work, I noticed a chirpy-squealy sound coming from the engine. The squeal will start when the engine speed drops below 2,000 RPM, and the sound drops out around 1,000 RPM. If at any time I step on the gas, even while still in the 1,000-2,000 RPM range, the squeal goes away... relax the gas pedal (and if in the mentioned range) and the sound comes back. I think it is coming from the passenger side of the engine bay. I tried to turn the side of my head towards various places around the engine, but the source of the sound is hard to place. Sounds like it might be coming from the alternator area, but then again... it sounds like it is coming from the front-right corner of the engine as well... or maybe the other side... Tomorrow I will try to double check where the sound might be coming from, just to rule out the driver's side (i.e. the A/C bearings). I completed a passenger side head gasket replacement a couple of weeks ago and have been driving it Mon-thru-Fri since. Problem just crept up today. My alternator belt might be a tad on the tight side from completing the recent work on the engine; battery meter appears to be in line with what I expect. Alternator is about 14 months / 2,400 miles old. Does this sound like a symptom of the alternator bearings on their way towards failure due to overtight belt? (I did a search for "alternator bearing squeal" on the DML and derivatives of the words, but only saw one question about it and the symptom did not seem to fit my case.) Any tricks to use to pin point the sound source other than what I have outlined below? 1) Remove A/C belt; check for squeal. 2) Maybe just loosening the alternator belt a little and see what happens. 3) Take out alternator and have it bench tested for the sound (will have to wait for weekend). Thanks. Regards, Wayne / VIN2447 To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: mailto:dmcnews-digest@xxxxxxxxxxxxxxx mailto:dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/