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> Strange Sound Under Hood When Braking
Expo95
post May 20 2009, 01:05 AM
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The sound is like the compressed air rushing out from plastic can. It is from under hood. The brake works fine. the sound was heard once when car was slow down to the red light by releasing gas padel without brake, and was last until brake was applied. When the window is opened, the sound is loud enough so that it can not be ignored.
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chain rattle
post May 20 2009, 02:10 AM
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check the vaccume line between the brake booster and the inlet manifold
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KiT TeUnG 2549
post May 20 2009, 11:38 AM
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Also the brake booster itself can be going bad , the air chamber is leaking air/vacuum when yu press the bakes.
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Expo95
post Jun 5 2009, 01:23 AM
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Found the front brake in the driver side is stuck. Release leaking valve, the liquid ran out. No air. It happened to this brake 2 weeks before, and solved it by pushing it back, and running well after that. Now, it happens again.

Is the cailper broken or there are other reasons? How to check caliper is good or bad?

Thanks!

QUOTE (KiT TeUnG 2549 @ May 20 2009, 11:38 AM) *
Also the brake booster itself can be going bad , the air chamber is leaking air/vacuum when yu press the bakes.
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KiT TeUnG 2549
post Jun 5 2009, 11:14 AM
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yu mean the brake bleeder valve on the caliper is leaking fluid? Or the caliper itself is leaking fluid?
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Expo95
post Jun 6 2009, 11:23 AM
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No leaking in these 2 places. I think there is no leaking any where because the liquid level in the reservior never changes. I loose brake bleeder valve to check if there is air in the line.

QUOTE (KiT TeUnG 2549 @ Jun 5 2009, 11:14 AM) *
yu mean the brake bleeder valve on the caliper is leaking fluid? Or the caliper itself is leaking fluid?
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Expo95
post Jun 7 2009, 01:54 AM
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sorry,the post is wrong but cannot remove it.
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Expo95
post Jun 7 2009, 02:00 AM
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Front Passenger side, when I turned the brake bleeder valve, it was snapped off without any effort. How can I get the other part inside the caliper out? Drill it? Or have to get a new caliper?

Thanks!

QUOTE (Expo95 @ Jun 6 2009, 11:23 AM) *
No leaking in these 2 places. I think there is no leaking any where because the liquid level in the reservior never changes. I loose brake bleeder valve to check if there is air in the line.
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