I drive a little Suzuki Sidekick, and the thing runs like a champ. But lately, since it started getting cold in late fall, a bearing somewhere under the hood makes quite a lot of noise. At times.
I say "at times" because I've had it to the shop three times so far this winter, and they have yet to figure out what it is I'm talking about. I describe the sound to the mechanic -- a loud distinct squeal (such as would be made by a failing bearing) -- that it occurs at various engine speeds (at about 2600, 3000 & 3400RPM), and most often when it's good & cold outside (sub-zero temps.) But the problem is, once the engine warms up a bit, it won't make a sound. Most of the time. Where I live and where I work is about the same distance to the shop, so when it's been sitting for a while at either place and I start driving it, I'll almost always hear the squeal. But by the time I get to the shop, it won't do it.
Today was plenty cold, and I had a few errands to run over my lunch hour. My trip took me past the shop twice; on the way out, it wasn't making the noise at all, so I didn't stop. But on the way back the thing was singing like a canary, so I stopped by the shop & had the manager go for a ride with me. It ran perfectly; not a peep from my noisy bearing.
I (and my mechanic) am beginning to think that the problem is in my head, and not under my hood.
Thanks for letting me vent. Anybody else have problems like this?