flobert wrote:


> Rachet noise, or more of a whir/purr, lasts about a second or so,
> right? If so, what is it that makes it do that

From Daniel Stern's write-up:
[http://www.allpar.com/fix/trans.html]

It's the transmission fluid control solenoid valves opening and shutting
rapidly to make the fluid go where it's supposed to go to shift the
transmission. All the FWD/AWD 4 speed automatics make this sound with
every upshift, every downshift, and every gear selection.


--
E-mail fudged to thwart spammers.
Transpose the c's and a's in my e-mail address to reply.