Hi List,
could it be squeaky belts?  That's my best guess.
Kim

>I can see I did not offer enough good clues re
>this new sound in my van since it returned from the shop.
>Here's the best I can do:
>Sound seems to be coming from the rear.
>I have only heard the chirping when I am driving
>& have not listened from the rear of the van.
>Chirping seems to increase in speed with engine speed.
>Van was just tuned up, among other things...
>Front & rear brakes were done along with rotors.
>Any ideas?
>Phaedra

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