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Metal to metal noise at slow speeds going up hill
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Old 25 Apr 2009, 04:12 PM   #1 (permalink)
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Metal to metal noise at slow speeds going up hill

Hello;

I have posted this same text in the tech section, but thought I would try here as well...

I have a 2002 Subaru Impreza 2.5RS. 77,000 kilometers.automatic xmission. When I am going very slow, usually up a small incline, at very slow speed, I hear this horrible metalic sound coming from the front area of the car.

The best way to describe it would be to imagine two pieces of metal vibrating at a high frequency against one another. The noise is low wave and goes away once speed is increased above 20Kph. It can also be described as someone dragging a metal object over an ashphalt surface.

I can also simulate the same sound by starting off and placing a load on the car by pressing on the brake pedal. This of course will only create the same noise as very very slow speeds.

I am worried that it might be the timing chain (?). I have checked the heat-shield underneath the car and everything is tight. The only other thing that I have recently got done is change the transmission fluid and rear diff fluids. (dealership performed).

Anyone have any ideas I would greatly appreciate it.

-Jim
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Old 25 Apr 2009, 05:52 PM   #2 (permalink)
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Re: Metal to metal noise at slow speeds going up hill

Quote:
Originally Posted by Mach7 View Post
Hello;

I have posted this same text in the tech section, but thought I would try here as well...

I have a 2002 Subaru Impreza 2.5RS. 77,000 kilometers.automatic xmission. When I am going very slow, usually up a small incline, at very slow speed, I hear this horrible metalic sound coming from the front area of the car.

The best way to describe it would be to imagine two pieces of metal vibrating at a high frequency against one another. The noise is low wave and goes away once speed is increased above 20Kph. It can also be described as someone dragging a metal object over an ashphalt surface.

I can also simulate the same sound by starting off and placing a load on the car by pressing on the brake pedal. This of course will only create the same noise as very very slow speeds.

I am worried that it might be the timing chain (?). I have checked the heat-shield underneath the car and everything is tight. The only other thing that I have recently got done is change the transmission fluid and rear diff fluids. (dealership performed).

Anyone have any ideas I would greatly appreciate it.

-Jim
Hi,
There is no timing chain... it's a belt

Ok.... could be a pulley bearing dried out... the ones to check would be Alternator (generator), power steering and air con pump pulleys

When you say front of the engine.... do you mean up near the fan housing area? Is it one side or another? central? etc

Did you notice this noise after the auto trans fluid was changed... or very shortly afterwards?

Need a bit more info please? can you cam corder it an put on youtube and send us the link?...

Hope this helps

Nobby
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Last edited by nobby248; 25 Apr 2009 at 05:56 PM.
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