After the truck is started there is a very high pitched squeal/whistle noise coming from the front of the engine close to the alternator or belt area. It happened a month ago and we thought it was the compressor on the ac. We turned the ac off and it stopped after about 5 miles. Never did it again until today 2 months later. It is an odd sound but very distinct. It doesn't do it all of the time. It gets louder when you speed the engine up.
Jun 18, 2014 at 8:46 AM