Can you name that sound (squeaking)?

Gjac wrote:
Also, if you put it in park and rev the engine does the sound change pitch or go away?

For talking purposes, I'm calling a "cold start" to be starting up after the RV has sat for an hour or longer.

From a cold start.... When I start the engine, there is no squeaking sound. If I let the engine sit and idle there is no squeaking sound. If I rev the engine while in park, I do not hear the squeak/chirp noise. If I drive slowly (under ~15mph) there is no sound (...this is true if I do a cold start and drive immediately, or if I do a cold start and let the engine warm up for 10 minutes before driving). The squeaking only starts once I hit about 15mph. It is sort of a rhythmic squeak/chirp noise that I can mentally imagine it *could* coincide with the tire making a complete orbit. RPM and gear don't seem to affect the sound much. After about 1.5 miles of driving, the squeak/chirp goes away. It doesn't make the noise again until the RV is parked and everything is allowed to cool.

I haven't had the chance yet to jack up the RV and try to rotate each tire. If I do get it jacked up (one wheel at a time of course) I could also pull the tire and look at the brakes to see if I can learn anything (...although I'm no brake expert). Maybe I'd be able to see the squealer tabs?? We'll see. When the front tires are jacked up, I assume I will be able to manually spin them. Not sure if I will be able to spin them fast enough(?) to make them squeak (if they are even the problem). As mentioned, when I'm driving below 15mph I do not hear any squeaking/chirp. We'll see I guess. I hope to get to this during the coming week.

-Chris