Toyota Sounds

Hello! I have a 2005 Corolla automatic. When it gets up to 2200 to 2500
rpms, there's an extra engine noise..like a grating. When I get above
aobut 2500, it goes away. Has nothing to do with my speed, just RPM.
Dealership can find nothing wrong. Last night, also noticed soft,
high-pitched squeal when idling. So, I have two new sounds. Any clues?

"Sal989" <baseballsally2@cablelynx.com> wrote in message
news:8a54c3c3b29fe8cfa3903ecc8b238e2e@localhost.talkaboutautos.com...[color=blue]
> Hello! I have a 2005 Corolla automatic. When it gets up to 2200 to 2500
> rpms, there's an extra engine noise..like a grating. When I get above
> aobut 2500, it goes away. Has nothing to do with my speed, just RPM.
> Dealership can find nothing wrong. Last night, also noticed soft,
> high-pitched squeal when idling. So, I have two new sounds. Any clues?
>[/color]

either a belt flapping or an exhaust rattle, particularly a breaking up cat.
squeal is probably a belt, spray them with water if it stops momentarily
then you know the fault is with the belt, get it changed.

mrcheerful

"Sal989" <baseballsally2@cablelynx.com> wrote in
news:8a54c3c3b29fe8cfa3903ecc8b238e2e@localhost.talkaboutautos.com:
[color=blue]
> Hello! I have a 2005 Corolla automatic. When it gets up to 2200 to
> 2500 rpms, there's an extra engine noise..like a grating. When I get
> above aobut 2500, it goes away. Has nothing to do with my speed, just
> RPM. Dealership can find nothing wrong. Last night, also noticed
> soft, high-pitched squeal when idling. So, I have two new sounds.
> Any clues?
>[/color]

i notice alot of drive belt noise on our 04 and 05 corolla's (fleet) that
seems to be poor belt tension. flexing the tensioner and cleaning the belt
(steel toothbrush and emory cloth) gets rid of tthe noise i
attack........kjun

I would check your belts for cracks on the underside/pulley side. Any
visible cracks mean they need replacing. The one you can't see is the
timing belt. If your mileage is over the limit for changing the timing
belt I would get that done right away. If it's like a Camry this belt
also drives the water pump which I would recommend also changing with a
timing belt job. I don't understand why the mechanics couldn't find the
problem by running up the RPM and using a stethoscope type device with a
rod on the end. It's used to detect bad bearings and find the source of
these noises. Anyway, this noise is something you definitely want to
find the source of before something more can get damaged. One more
thing, try turning your steering to the left or right limit. This puts
a strain on the steering pump and would make that belt squeel if it's
loose. Good luck.

J



Sal989 wrote:[color=blue]
> Hello! I have a 2005 Corolla automatic. When it gets up to 2200 to 2500
> rpms, there's an extra engine noise..like a grating. When I get above
> aobut 2500, it goes away. Has nothing to do with my speed, just RPM.
> Dealership can find nothing wrong. Last night, also noticed soft,
> high-pitched squeal when idling. So, I have two new sounds. Any clues?
>[/color]

Joey wrote:
[color=blue]
> I would check your belts for cracks on the underside/pulley side. Any
> visible cracks mean they need replacing. The one you can't see is the
> timing belt. If your mileage is over the limit for changing the timing
> belt I would get that done right away. If it's like a Camry this belt
> also drives the water pump which I would recommend also changing with a
> timing belt job.[/color]

The car in question uses a timing chain, not a belt.

Then, is the timing chain something I should ask the dealership to look
into?

Sal989 wrote:[color=blue]
> Then, is the timing chain something I should ask the dealership to look
> into?
>[/color]
Sal,

I was not aware your model used a timing chain. They don't get replaced
like a timing belt and would not cause the noise you're referring to.
Are you positively sure this model uses a timing chain and not belt ?

J

Joey wrote:
[color=blue]
> Are you positively sure this model uses a timing chain and not belt ?[/color]

The Corolla has been chain driven starting with the '98 model.