Re: Tracking down noise in 97 Taurus -update-
Turns out the noise is the serpentine belt slapping around at idle, it's not
under enough tension. Would this be due to belt stretching generally, or am
I likely to need to replace the tensioner? (ie, is the tensioner failing a
common problem). The belt looks fairly old (maybe even original, I haven't
had this car that long).
"Teknical" <email@example.com> wrote in message
> 97 Taurus ~120,000 miles, 3.0 vulcan engine.
> At idle in gear, the car makes a "buzzing" noise from the front of the
> car, sounds like a heat shield slapping around, but I can't see anything
> obviously loose. If you take it out of gear or touch the gas pedal, it
> goes away. Also, if I put the AC on, the noise changes to a random
> metallic clang/tap along with the buzzing, like hitting a wrench against a
> piece of metal. Again, only at idle in gear, and it goes away as soon as I
> hit the gas a touch. The AC functions fine, IE blows very cold air.
> I haven't ruled out the heat shield issue, but the totally different (and
> much louder) noise when the AC compressor engages makes me wonder.
> Any guesses?