1 It is not a very loud whistle/chirp
2 Only happens on a cold start up
3 Lasts about 10 min only.
4 Belt has no cracks, no threading on the edges.
5 Auto-tensioner indicator is right in the middle of the proper range.
Guys, I’d be grateful for any ideas in troubleshooting this whistle.

 

Put a quality belt on it and forget it.

 

typical of 70k+ miles

old belts make nosie when cold. as they age, they start to harden up slightly


I would buy a new belt if it bothers you, but upon inspection of belt and seeing no damage, its fine to use for a while longer.

If you recently had the belt adjusted, its a bit loose.

 

thank you for your suggestions.

 

Tell-tale sign of low blinker fluid.

 

TSB for Chirp from the Timing Belt: http://techinfo.honda.com/Rjanisis/pubs/SB/b08-031.PDF

The idler pulley mounting surface is tilted, causing the
edge of the timing belt to rub against the side of the
drive pulley (gear).

 

 

I had a similar noise from the belts on my 05 Pilot. Bought a new belt from honda and put it on it still was there. I next removed the belt and spun all the pullies to make sure they were spinning freely. I discoverd the alternator bearing was the problem. it could be and of the pullies making the noise hope this helps