2004 Sienna Vibrating noise coming from underneath engine

"hreg" wrote in message

> vibrating plate-like sound coming from under the engine which seems
> only to happen when car is idling. I took it to the dealer. They
> apparently removed a heat sheild that was loose. It still makes a
> sound. In fact it's louder.
>

As Ph@Boy mentioned, it is difficult to diagnose noises and vibrations
without experiencing them first hand.

Heat shields are a common source of noise, but it is generally not a good
idea to remove them. I doubt if the dealer removed a heat shield, more
likely, they tried to secure it somehow. Take it back so that they can hear
it first hand.

My guess is that it is a heat shield for the catalytic converter or the
noise is coming from the flex pipe.
--

Ray O
(correct punctuation to reply)
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